Contents

ArcMap Advanced Settings Registry Keys .................................................................................. 2

Advanced Editing Tab ................................................................................................................. 2

Editor Tab ................................................................................................................................... 3

Miscellaneous Tab ..................................................................................................................... 5

Data Frame Tab .......................................................................................................................... 7

System Paths Tab ....................................................................................................................... 8

Print / Export Tab ....................................................................................................................... 9

TOC/Data Tab ........................................................................................................................... 10

Linear Referencing Tab ............................................................................................................ 12

Raster Tab ................................................................................................................................ 13

Symbols/Graphics Tab ............................................................................................................. 14

Additional registry settings not exposed in the Advanced ArcMap Settings utility ................ 16

ArcMap Advanced Settings Registry Keys The ArcMap Advanced Settings utility is a companion settings utility for ArcMap. It is designed to give

users safe access to customization settings for ArcMap that cannot be changed within the software

itself. This document describes the registry keys written by the ArcMap Advanced Settings utility. The

utility never writes anything to the registry unless the Apply button is pressed, and then, it only writes

settings for those values that have changed.

ArcMap assumes default values for non-existent registry settings. Most of the registry settings utilized

are located in HKCU. This means when a new user logs in and starts ArcMap, the registry keys do not

exist and defaults for most settings are assumed. Not all registry keys utilized by the software are listed

here; only the ones for which no user interface exists in the software for setting them.

The following format is used to describe registry items:

VALUE TYPE: Registry Path\Value Name

Description: Describes function and usage

HKCU = HKEY_CURRENT_USER

HKLM = HKEY_LOCAL_MACHINE

The following registry keys and values are listed and described based on the tab in the ArcMap

Advanced Settings utility. The tabs are listed in alphabetical order in this document. Many of the

registry keys also apply to ArcGIS Server and ArcGIS Engine; however \Desktop10.0\ is replaced with

the respective product name in the registry path.

Desktop10.0

Server10.0

Engine10.0

Advanced Editing Tab

COGO field mapping

Description: These values are strings of field names that the ArcMap editing environment uses when it writes the COGO attributes of a line to the feature class. If there is no field mapping set, the following field names are used; Direction or Angle, Distance, Radius, Delta, Tangent, ArcLength and Side. REG_SZ: HKCU\Software\ESRI\Desktop10.0\ArcMap\Garcia\CogoFeature Class\Angle

REG_SZ: HKCU\Software\ESRI\Desktop10.0\ArcMap\Garcia\CogoFeature Class\Distance

REG_SZ: HKCU\Software\ESRI\Desktop10.0\ArcMap\Garcia\CogoFeature Class\Radius

REG_SZ: HKCU\Software\ESRI\Desktop10.0\ArcMap\Garcia\CogoFeature Class\Delta

REG_SZ: HKCU\Software\ESRI\Desktop10.0\ArcMap\Garcia\CogoFeature Class\Tangent

REG_SZ: HKCU\Software\ESRI\Desktop10.0\ArcMap\Garcia\CogoFeature Class\ArcLength

REG_SZ: HKCU\Software\ESRI\Desktop10.0\ArcMap\Garcia\CogoFeature Class\Side

Description: These values are strings of field names that the ArcMap Editor uses when it writes the

COGO attributes of a line to the feature class. The fields are used by the Traverse tool, Inverse command

and Proportion command. If there is no field mapping set, the following field names are used; Direction

or Angle, Distance, Radius, Delta, Tangent, ArcLength and Side.

REG_DWORD: HKCU\Software\ESRI\Desktop10.0\ArcMap\Garcia\CogoFeature

Class\ClearCOGOAttributes

Description: This determines whether or not to clear the COGO attributes when a feature is modified

by commands in the Editor. A value of 1 (default) means to clear attributes and 0 means to not clear

attributes.

Topology and advanced editing settings

REG_DWORD: HKCU\Software\ESRI\Desktop10.0\Titus\ShowDirtyAreas

Description: This determines whether or not the dirty area symbol will be included when a topology

layer is added to ArcMap. A value of 0 (default) means no dirty area symbol will appear and 1 means

the dirty area symbol will appear in the topology layer.

REG_DWORD: HKCU\Software\ESRI\Desktop10.0\Titus\PointErrorZoomFactor

Description: This is used to determine the extent of the map used when zooming to a single point

error. The default value is 1/50 of the extent of the topology.

REG_DWORD: HKCU\Software\ESRI\Desktop10.0\Titus\TopologyControlWidth

Description: This is the width in pixels of the Choose Topology control.

Editor Tab

Data and editing behavior

REG_DWORD: HKCU\Software\ESRI\Desktop10.0\ArcMap\Garcia\EmptyStringIsNull

Description: When editing attribute values ArcMap will assume that an empty string () really means

Null if set to 1, or if set to 0, it really is an empty string.

REG_DWORD: HKCU\Software\ESRI\Desktop10.0\ArcMap\Garcia\WarnOnSubtypeChange

Description: Shows a warning message when you change the existing subtype of a feature. A value of 0

means the warning will not be shown and 1 (default) means the warning will be shown.

REG_DWORD: HKCU\Software\ESRI\Desktop10.0\ArcMap\Garcia\InitDefaultsOnSubtypeChange

Description: If this value is 1, the database will reinitialize values based on your subtype such that those

values will be based on your new value, if 0, you will have to do this manually, or you continue to use

the old values.

REG_DWORD: HKCU\Software\ESRI\Desktop10.0\ArcMap\Settings\Annotation\ShowFollowWarning

Description: For the Edit Annotation tool in Follow Feature Mode, this determines whether or not a

warning is shown if the feature that an annotation is following is outside the current map extent. A

value of 0 means the warning will not be shown and 1 (default) means the warning will be shown. In

both cases the Follow Feature Mode will be suspended.

REG_DWORD: HKCU\Software\ESRI\Desktop10.0\ArcMap\Garcia\UseTemplates

Description: When checked, the editing environment uses feature templates and the Create Features window when adding new features. When unchecked, any user interface element used with feature templates is removed, and the Editor reverts to its appearance and use from the ArcGIS 9.3 release. For example, the Editor toolbar contains the Sketch tool palette, target layer menu, and task menu, and edit tasks are used in conjunction with the target layer to create and edit features. Due to the usability benefits that feature templates provide, it is recommended that this setting remain checked. However, it is available to allow organizations to continue to use their existing editing customizations while they transition their development work to the editing template model. REG_DWORD: HKLM\SOFTWARE\Microsoft\Jet\4.0\Engines\Jet 4.0\MaxLocksPerFile

Description: If you are calculating more than 9,500 records against an Access database when inside of

an edit session, the operation will abort because of the Jet engine lock count limitation. If you increase

this value, you can calculate more features. Note: Changing this registry key requires administrative

privileges.

REG_DWORD: HKCU\Software\ESRI\Desktop10.0\ArcMap\Garcia\VertexSearchFactor

Description: This is a factor that is multiplied by the current snap tolerance setting to determine a

distance to search for features to show their vertices. The factor is used when the V key is pressed with

any standard editing tool. All vertices of features within "factor * snap tolerance" will be drawn. The

default is 5.

REG_DWORD: HKCU\Software\ESRI\Desktop10.0\ArcMap\Garcia\ZControl Width

Description: This is the width in pixels of the Current Z control that is available in the customization

dialog.

Miscellaneous Tab

Monitor settings

The advanced settings utility displays customized monitor settings on the Miscellaneous tab. If monitor

settings have not been customized, the utility calculates a range of values that will work to obtain the

calculated dpi (dots per inch) values the same way it is done in ArcMap, and it picks a value that is close

to the middle of this range. The most precise way to specify the monitor dimensions is to use a ruler to

physically measure the display area of your monitor and enter these values (in millimeters) in the

settings utility then click Apply. Then ArcMap will begin using the customized values.

If you change your monitor, you may want to measure the new monitor and reapply settings, or delete

customized settings so ArcMap will calculate a dpi setting for you.

REG_DWORD: HKCU\Software\ESRI\Desktop10.0\ArcMap\Settings\Monitor\Height

Description: This is the height in millimeters of your monitors display area. If monitor settings are not

customized, ArcMap gets the dpi setting from your display driver to use for scaling purposes. Changing

this setting to reflect the setting for your monitor will cause some things like legend items in the user

interface to draw at their correct size. Click Delete customized settings to delete customized monitor

settings and replace customized settings with default values.

REG_DWORD: HKCU\Software\ESRI\Desktop10.0\ArcMap\Settings\Monitor\Width

Description: This is the width in millimeters of your monitors display area. If monitor settings are not

customized, ArcMap gets the dpi setting from your display driver to use for scaling purposes. Changing

this setting to reflect the setting for your monitor will cause some things like legend items in the user

interface to draw at their correct size. Click Delete customized settings to delete customized monitor

settings and replace customized settings with default values.

Hyperlink base

REG_SZ: HKCU\Software\ESRI\Desktop10.0\ArcMap\Settings\Hyperlinks\HyperlinkBase

Description: This sets whether to disable inserting a slash separator between the hyperlink base and the

link (1), or disable (0).

Panning and scrolling

Mouse wheel roll behavior (support for this new registry key added in 9.2 Service Pack 3)

REG_DWORD: HKCU\Software\ESRI\Desktop10.0\ArcMap\Settings\MouseWheelScroll

Giving this registry key a value of 1 tells ArcMap to scroll the map when you roll the mouse wheel.

When this registry setting has not been specified, or when it has a value of 0, rolling the mouse wheel

will zoom in/out, the default behavior at 9.2.

Behavior involving single-clicking or holding down the mouse wheel is unaffected by this registry setting.

This registry setting is not recognized by ArcMap 9.2 prior to Service Pack 3.

For example, you may have used ArcMap 9.1 with a mouse with a 'tilt' wheel that can be tilted from side

to side in addition to being rolled, enabling you to pan in four directions. Using a tilt wheel mouse to pan

in four directions in ArcMap 9.2 doesn't work by default because rolling the mouse wheel zooms in/out

instead of scrolling up/down. So you could give this registry setting a value of 1 to restore this behavior.

Pan delay

By default, when you pan the map in ArcMap you can immediately commence another pan without

waiting for the first one to complete redrawing the display. The first pan gets interrupted by the next, so

you don't have to wait. You may prefer to be able to do several successive pans without interrupting the

drawing by adding a slight delay to the pan function via an optional registry setting. The delay tells

ArcMap to wait for a specified number of milliseconds after a pan before starting to redraw the map to

see if another pan is started. This can make the pan function smoother and less 'jumpy', especially when

your maps contain a large number of layers because it allows you to do multiple small pans before the

display starts to redraw. However because it adds a delay it does slow down the time it takes for a single

pan to complete. For this reason, there is no delay by default.

REG_DWORD: HKCU\Software\ESRI\Desktop10.0\Display\Scroll Delay

Specify the number of milliseconds delay as a decimal number. A delay of 400 or 500 is suggested if you

want this behavior. To have no delay, either set the value to 0, or delete the registry setting. ArcMap

behaves as normal if it doesn't find this registry setting.

Buffer wizard

REG_DWORD: HKCU\Software\ESRI\Desktop10.0\ArcMap\Wizards\Buffer Dialog\Ring Shape Type

Description: This has two possible values. One is Rings (the default), which causes the buffer wizard to

create rings the width of the specified buffers around features. The other is Disks, which causes the

buffer wizard to create disks that overlap the shape that is buffered, extending beyond that shape for

the distance of the specified buffer.

REG_DWORD: HKCU\Software\ESRI\Desktop10.0\ArcMap\Wizards\Buffer Dialog\Processing Spatial

Reference

Description: The buffer wizard, in order to minimize distortion, processes buffers using a temporary

coordinate system. This is the spatial reference in which buffers are constructed. Buffers can be

processed using 4 different methods. The default method, the Feature set optimized coordinate system

method, creates a temporary spatial reference base on the spatial distribution of all the features being

buffered. The Feature optimized coordinate system method creates temporary spatial references for

each feature being buffered (this method provides the least distortion of the 4 but takes the longest to

process). The Coordinate system of the data frame (output) uses the spatial reference of the data

frame. This method produces buffers that are uniform (not distorted). This method would be used for

creating cartographic effects like a coastline vignette. Finally, the Coordinate system of the feature

class (input) method uses the spatial reference feature class.

REG_DWORD: HKCU\Software\ESRI\Desktop10.0\ArcMap\Wizards\Buffer Dialog\Simplify Shapes

During Processing

Description: The buffering of very complex shapes may lead to unexpected results. Checking the Force

geometric simplification during buffer processing check box (a registry value or 1) forces the application

to re-evaluate (i.e., simplify) geometric structures of the buffered shapes. Using this approach will add

time to the buffering process.

License timeout warning

REG_SZ: HKLM\Software\ESRI\License10.0\TimeoutWarning

Description: This setting determines whether or not you will be warned, starting 15 days prior to your

license or evaluation license expiration, for any ArcGIS application or extension timing out. The default

value is True (written as a string). Note: Changing this registry key requires administrative privileges.

Data Frame Tab

Data frame refresh rate

REG_DWORD: HKCU\Software\ESRI\Desktop10.0\Display\Refresh Rate

Description: The default is 500. This is the number of milliseconds that ArcMap will use as an interval to

check the display. The lower the number, the more smoothly ArcMap will appear to draw. This can also

be used to synch ArcMap's refresh rate to a camera so that flickering can be eliminated. The valid range

is 1-1000.

Graticule densification

REG_SZ: HKCU\Software\ESRI\Desktop10.0\ArcMap\Settings\Graticule\

DensificationDistanceInDegrees

Description: This sets the amount of densification applied to graticule lines. The default value for this

setting is 1.

Giving this REG_SZ registry key a value of 0.1, for example, tells ArcMap to place vertices every 10th of a

degree. Valid values are from 0.01 to 5. 0.01 means the graticule gets vertices placed every 100th of a

degree and can seriously impact performance when working with a map that covers a large area, such as

a world map. For this reason we recommend that you use finer levels of densification only when you can

see on the map that the graticule doesnt quite line up with your data. When this registry setting has not

been specified, or when it has a value of 1, graticules will appear the same as they do in 9.2. This registry

setting is not recognized by ArcMap 9.2 prior to Service Pack 3.

Display rotation alpha factor

REG_SZ: HKCU\Software\ESRI\Desktop10.0\Display\Rotation Alpha

Description: This sets the relative transparency of the superimposition of your data as you rotate it

using the rotate tool on the data frame tools toolbar. Valid values range from 0 (completely transparent

so you don't see what you're rotating) to 255 (where you only see what you're rotating). The default is

200, which makes the original data look faded out. A value of 100 will effectively reverse that effect.

Marker symbol rotation

REG_DWORD: HKCU\Software\ESRI\Desktop10.0\Symbology\Settings\RotateWithTransform

Description: The default value for this setting is 1, which means that marker symbols will rotate

additionally with dataframe rotation. When set to 0, marker symbols will not rotate with data frame

rotation and instead maintain their orientation with respect to the page.

System Paths Tab

All users

REG_SZ: HKLM\Software\ESRI\Desktop10.0\CoreRuntime\StyleDir

Description: This tells ArcMap the location of .style files. ArcMap will display all .style files found in this

folder in the place users can reference styles. Note: Changing this registry key requires administrative

privileges.

REG_SZ: HKLM \Software\ESRI\Desktop10.0\ArcMap\Settings\TemplateDir

Description: This tells ArcMap the location of the template files. Note: Changing this registry key

requires administrative privileges.

REG_SZ: HKLM \Software\ESRI\Desktop10.0\CoreRuntime\Locator\Settings\LocatorDirectory

Description: This tells ArcMap and ArcCatalog the locations for locator files. Note: Changing this

registry key requires administrative privileges.

REG_SZ: HKCU\Software\ESRI\Desktop10.0\CoreRuntime\Locator\Settings\LocatorDirectory

Description: This tells ArcMap and ArcCatalog the locations for locator files. Note: Changing this

registry key requires administrative privileges.

Current user

REG_SZ: HKCU\Software\ESRI\Desktop10.0\ArcMap\Settings\ Reference Systems\Predefined Path

Description: This tells ArcMap the location of the coordinate systems.

REG_SZ: HKCU\Software\ESRI \Output\TempPath

Description: Overrides the system's temp directory location when creating output temp files. Take

caution when setting this value, since changing it to a directory that doesn't exist can cause printing and

exporting to fail.

Print / Export Tab

Current User

REG_DWORD: HKCU\Software\ESRI\Desktop10.0\Display\OutputSizeLimit

Description: The temp metafile size limit. Smaller temporary metafile sizes can alleviate "Cannot map

metafile into memory. Not enough memory" errors experienced during printing or exporting in ArcGIS.

REG_DWORD: HKCU\Software\ESRI\Desktop10.0\Output\ESRIExportRasterBufferSizeMB

Description: The output raster buffer size. The default value for the buffer is 8 MB. Setting the buffer

size to a larger value like 16 or 32 can make image export (JPEG, TIFF, PNG, GIF) faster. Larger values will

cause performance to improve up to a certain threshold. However, once the value becomes very large,

like 64 MB or higher, the machine may start to use page file instead of RAM, and performance will

decrease.

Vector export polygon vertex limit

REG_DWORD :HKCU\Software\ESRI\Desktop10.0\Export\ExportObjectsParams\ai_MaxVertices

Description: AI export polygon vertex limit (default is 8,000)

REG_DWORD: HKCU\Software\ESRI\Desktop10.0\Export\ExportObjectsParams\eps_MaxVertices

Description: EPS export polygon vertex limit (default is 5,000)

REG_DWORD: HKCU\Software\ESRI\Desktop10.0\Export\ExportObjectsParams\pdf_MaxVertices

Description: PDF export polygon vertex limit (default is 5,000)

REG_DWORD: HKCU\Software\ESRI\Desktop10.0\Export\ExportObjectsParams\svg_MaxVertices

Description: SVG export polygon vertex limit (default is 5,000)

Description: Control the maximum number of vertices per polygon (output dicing limit). When a vector

format export encounters a polygon feature with more vertices than defined in this limit, the polygon

will be split into multiple polygons in the output file. This splitting process is called polygon dicing.

Exported files with "diced" (split) polygons are easier for applications like Acrobat and Illustrator to

interpret, resulting in faster view times for users. However, if you are using the application to edit

polygons in the export file, you may wish to preserve single GIS feature polygons as single graphic

objects in the export file. You can do this by increasing the polygon vertex limit for the target output

format.

TOC/Data Tab

Default patch size and shape

REG_SZ: HKCU\Software\ESRI\Desktop10.0\ArcMap\Settings\PatchWidth

Description: The default for this is 12. This is the width of the default patch line. This can be

customized in ArcMap (Tools | Options | TOC). This value is saved with a document; when the

document is opened, the setting is restored. This registry setting (as with all patch width size and shape

settings) sets the default for new documents only.

REG_SZ: HKCU\Software\ESRI\Desktop10.0\ArcMap\Settings\PatchHeight

Description: The default for this is 12. This is the height of the default patch line. This can be

customized in ArcMap (Tools | Options | TOC). This value is saved with a document; when the

document is opened, the setting is restored. This registry setting (as with all patch width size and shape

settings) sets the default for new documents only.

REG_SZ: HKCU\Software\ESRI\Desktop10.0\ArcMap\Settings\LinePatch

Description: The default for this is Horizontal. This is the default patch line. This can be customized in

ArcMap (Tools | Options | TOC). This value is saved with a document; when the document is opened,

the setting is restored. This registry setting (as with all patch width size and shape settings) sets the

default for new documents only.

REG_SZ: HKCU\Software\ESRI\Desktop10.0\ArcMap\Settings\AreaPatch

Description: The default for this is Rectangle. This is the default patch shape. This can be customized in

ArcMap (Tools | Options | TOC). This value is saved with a document; when the document is opened,

the setting is restored. This registry setting (as with all patch width size and shape settings) sets the

default for new documents only.

Working with data

REG_DWORD: HKCU\Software\ESRI\Desktop10.0\ArcMap\Settings\SkipDatumCheck

Description: This turns on (0) or off (1) the check that ArcMap makes when data is added to the map.

The check reports when the reported datum of one or more data sources is missing or different than the

display datum.

REG_DWORD: HKCU\Software\ESRI\Desktop10.0\ArcMap\Garcia\WarnSpatialRefMismatch

Description: If this value is 1, ArcMap displays a warning message when editing datasets with

unmatched coordinate systems. If the value is 0, the warning message is not displayed.

REG_DWORD: HKCU\Software\ESRI\Desktop10.0\ArcMap\Settings\MaxNumOverflowLabels

Description: This determines the maximum number of labels that the overflow window can display. The

purpose is to keep large labeling jobs, whether intended or accidental, from causing ArcMap to take all

the memory on the machine and then crash the machine. The way this works is that if ArcMap

determines there are more than this number of unplaced labels, it stops tracking the unplaced labels

and does not return any labels to the overflow window.

REG_DWORD: HKCU\Software\ESRI\Desktop10.0\ArcMap\Settings\MaxNumCachedImages

Description: This is the number of images that ArcMap tracks in the Temporary Internet Files directory

so that when the user uses the zoom forward and backward buttons, ArcMap doesnt need to actually

go back to the IMS server for the imagesaving time. Set this to 0 (zero) if you do not want caching to

be turned on.

Number of legend entries shown for ArcGIS Server map service sublayers (support for this new registry key added in 9.3)

When you add an ArcGIS Server map service into your map, you can expand the sublayers to see their

legends. However, due to some technical limitations, ArcMap can sometimes run out of Windows GDI

resources (and therefore crash) if there are a very large number of items in the legend of a sublayer in

an ArcGIS Server map service layer. We therefore impose a limit of 100 to the number of legend items

that will be displayed for any sublayer. If the sublayer has more than 100 legend items, then we do not

show any of these legend items, and instead the sublayer is displayed in the Table Of Contents without

an expansion control, so none of its legend items can be seen.

The following registry key lets you override the default number of 100:

REG_DWORD: HKCU\Software\ESRI\Desktop10.0\ArcMap\Server\MapServerLayer\Maximum Legend

Count

Normally there is no need to change this setting. One reason to change it to make it smaller is if you are

experiencing problems with ArcMap performance that seem to stem from there being a large number of

legend items in the services you are accessing. You may need to increase this setting if you or your

organization needs to access services that do contain sublayers with more than 100 legend items, and it

is important that all of the legend items can be seen. Usually however, layers with more than 100 legend

items are hard to work with and recognize symbols in anyway.

Drawing Errors window

REG_DWORD: HKCU\Software\ESRI\Desktop10.0\ArcMap\Settings\SuppressDrawingErrors

Description: The default value for this setting is 0, which means that ArcMap will display a Drawing

Errors window when a layer cannot be drawn to explain why the layer cannot be drawn. When set to 1,

the window will not be displayed.

Linear Referencing Tab

Linear Referencing

REG_SZ: HKCU\Software\ESRI\Desktop10.0\ArcMap\DynSeg\RouteField

REG_SZ: HKCU\Software\ESRI\Desktop10.0\ArcMap\DynSeg\FromField

REG_SZ: HKCU\Software\ESRI\Desktop10.0\ArcMap\DynSeg\ToField

REG_SZ: HKCU\Software\ESRI\Desktop10.0\ArcMap\DynSeg\MField

REG_SZ: HKCU\Software\ESRI\Desktop10.0\ArcMap\DynSeg\OffsetField

REG_SZ: HKCU\Software\ESRI\Desktop10.0\ArcMap\DynSeg\XField

REG_SZ: HKCU\Software\ESRI\Desktop10.0\ArcMap\DynSeg\YField

Description: These values are space-delimited strings of field names that ArcMap automatically uses to

populate the linear referencing user interface if these fields are found the source table.

Identify route locations

REG_DWORD: HKCU\Software\ESRI\Desktop10.0\ArcMap\DynSeg\IdentifyDecimalPlaces

Description: This controls the number of decimal places for numbers used on the Identify Route

Locations dialog. Valid values are 0 to 10; anything else (or non-existent) will result in the default of 3

being used.

REG_DWORD: HKCU\Software\ESRI\Desktop10.0\ArcMap\DynSeg\ShowIdentifyRouteLabels

Description: This controls whether the 'route' and 'measure' text will be included when labeling route

locations. If 0, then do not show labels; anything else (or non-existent) will show labels.

Hatching

REG_DWORD: HKCU\Software\ESRI\Desktop10.0\ArcMap\DynSeg\HatchDefaultPrecision

Description: This controls the default precision of numbers in text for newly added hatch definitions.

Valid values are 0 to 10; anything else (or non-existent) will result in the default of 2 being used.

Raster Tab

Default resampling mode

REG_DWORD: HKCU\Software\ESRI\Desktop10.0\Raster\ResampleMode

Description: This setting is used to control initial raster display resampling. A value of 0 (default) is

nearest neighbor resampling for all rasters; 1 causes bilinear interpolation to be used only on continuous

rasters, and 2 causes cubic convolution to be used only on continuous rasters.

Raster unique value limit

REG_DWORD: HKCU\Software\ESRI\Desktop10.0\Raster\UniqueValueDefaultRenderer_ValuesLimit

Description: This is a value used to control the maximum number of values that ArcMap will use the

Unique Value renderer on. By default this is set to 25, whereby any dataset with >26 values will use the

Stretched renderer instead. An error is displayed if you enter a value outside the range 1-256.

Attribute limit

REG_DWORD: HKLM\Software\ESRI\Desktop10.0\Raster\Preferences\grid.max_table_range

Proxy file locator

REG_DWORD: HKLM\Software\ESRI\Desktop10.0\Raster\Environment\TMPDIR

Description: This determines the location where auxiliary and pyramid proxy files are created and

stored. Proxy files are created on read-only raster data, raster data that is located on read-only media,

or within a read-only folder. Note: Changing this registry key requires administrative privileges.

Drawing block option

REG_DWORD: HKCU\Software\ESRI\Desktop10.0\Raster\DrawingMode

Description: This setting is used to control the type of screen drawing rasters use. A value of 1 (default)

is top-to-bottom-progressive-row mode, 0 is left-to-right-progressive-block mode, and 2 is full-raster-at-

once refresh mode.

Symbols/Graphics Tab

Symbol defaults

REG_SZ: HKCU\Software\ESRI\Desktop10.0\ArcMap\ColorRamp\DefaultRamp

Description: This is the name of the default color ramp that the Quantities, graduated colors symbology

user interface uses.

REG_SZ: HKCU\Software\ESRI\Desktop10.0\ArcMap\ColorRamp\DefaultScheme

Description: This is the name of the default color scheme that the Categories, unique values symbology

user interface uses.

REG_SZ: HKCU\Software\ESRI\Desktop10.0\Display\Background RGB

Description: This is the color (RRR GGG BBB) that ArcMap will use as the background for its display.

REG_SZ: HKCU\Software\ESRI\Desktop10.0\ArcMap\Settings\Symbol Defaults\MarkerSize

Description: This will be the size of marker symbols for point data when initially added to ArcMap.

REG_SZ: HKCU\Software\ESRI\Desktop10.0\ArcMap\Settings\Symbol Defaults\LineWidth

Description: This will be the width of line symbols for line data when initially added to ArcMap.

Selection feedback rectangle outline symbol

REG_DWORD:HKCU\Software\ESRI\Desktop10.0\ArcMap\Settings\LineFeedbackStyle

Description: This is the style of the line symbol used for the line symbol for the outline of the selection

rectangle used to select graphics or features. The styles match the ISimpleLine style enumerations.

REG_DWORD: HKCU\Software\ESRI\Desktop10.0\ArcMap\Settings\LineFeedbackWidth

Description: This is the line width of the symbol used for selecting rectangles for the graphics and

feature selection tools. This is also the line width of the edit sketch. If this value exceeds 1, the dash- or

dot-patterns will not be shown.

REG_DWORD: HKCU\Software\ESRI\Desktop10.0\ArcMap\Settings\LineFeedbackColor

Description: This is the RGB value of the color for the line symbols used for the outline of the rectangle

used to select graphics or features.

Label annotation

REG_DWORD:

HKCU\Software\ESRI\Desktop10.0\ArcMap\Settings\Annotation\RotateSymbolsOnTheFly

Description: This determines whether or not text labels should be rotated with data frame rotation. A

value of 0 (default) means no rotation and 1 means rotation. Created when labeling is applied (Layer

Properties Labels tab).

REG_DWORD:

HKCU\Software\ESRI\Desktop10.0\ArcMap\Settings\Annotation\RotateSymbolsOnConvert

Description: Determines whether or not text annotation should be rotated with data frame rotation.

This is set only when you convert labels to annotation in ArcMap (right-click on layer > Convert Labels to

Annotation), or when you create a new feature-linked annotation feature class in ArcCatalog. 0 means

do not rotate annotation when the data frame rotates, and 1 (default) means do rotate the annotation.

REG_DWORD: HKCU\Software\ESRI\Desktop10.0\ArcMap\Settings\Annotation\DensifyAnnoBaseline

Description: Determines whether or not straight annotation text should be curved when projected. 0

(default) means do not densify. This means that only the endpoints of straight annotation will be

projected when the annotation is displayed in a map with a different coordinate system. 1 means that

the baseline of straight annotation will be densified. These intermediate points are projected to provide

a curved effect when the annotation is displayed in a map with a different coordinate system.

Additional registry settings not exposed in the Advanced ArcMap

Settings utility

Controlling how the table window Field Calculator handles truncated values when calculating text fields (Added in 9.3)

In 9.2 if you use the Field Calculator to calculate a text field and truncation occurs because the field

length is too small to hold the calculated values, we added a warning message to let you know the

situation and truncated values are flagged with a trailing asterisk * so you can easily find and fix them if

necessary:

At 9.3 we have added the ability for you to suppress the addition of the trailing asterisk. If you do not

want the asterisk to be applied when truncation occurs, change the value for this DWORD registry key

from 1 to 0:

REG_DWORD: HKCU\Software\ESRI\Desktop10.0\ArcMap\TableWindow\Flag truncated values with an Asterisk

When this key is set to 1, you will still get the same warning message shown above when truncation

occurs, but the

The timeout that ArcGIS Desktop uses to access third party tiled internet services like Microsoft Bing

When you access a tiled internet service like Microsoft Bing, ArcGIS Desktop defaults to a 6 second

timeout before it gives up waiting for a tile to be returned from that server. This default is specified in

this registry key and is also used if this registry key is not found. You can press the Refresh button in

ArcMap to also force it to request all the tiles for the current display again. However if you find that you

frequently get missing tiles either in your display or in printed or exported maps, you should try

increasing this timeout. For example start by increasing it to 10 seconds. This timeout is used by both

ArcMap and ArcGlobe.

REG_DWORD: HKCU\Software\ESRI\Desktop10.0\InternetTiledLayer\httpTimeout

Note: This mechanism doesn't apply to ArcGIS.com services.