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Welcome to ArcGIS Desktop Help
Copyright information
GIS Dictionary
What's new in ArcGIS Desktop 9.1
What was new in ArcGIS Desktop 9.0
Getting started
What is ArcGIS Desktop?
ArcGIS geodatabase
ArcGIS geoprocessing
ArcGIS geovisualization
ArcGIS Desktop extensions
GIS data structure types
Data types supported in ArcGIS
Desktop Administration
ArcCatalog
ArcMap
ArcReader
Geoprocessing in the ArcGIS environment
Geoprocessing tool reference
Building a geodatabase
Editing in ArcMap
Geocoding
Linear referencing
Getting started with linear referencing
Creating route data
Displaying and querying routes and events
Editing routes
About editing routes
Using ArcMap to create routes from existing lines
Using ArcMap to calibrate routes with points
About setting route measures
Remeasuring routes
Creating and editing event data
Map projections
Getting started with map projections
Geographic coordinate systems
Projected coordinate systems
Geographic transformations
Supported map projections
Writing geoprocessing scripts
Customizing the user interface
Migrating from ArcView GIS 3 to ArcView 9
Migrating from ArcInfo Workstation to ArcGIS Desktop
ESRI Data & Maps
Extensions
Getting more help
Using this Help system
Getting help within the applications
Contacting Technical Support
Support for users located outside the United States
Accessing ESRI Software Training
Using the GIS Dictionary
Help for developers