File-based raster layers cannot be added using ArcIMS Author

Last Published: April 25, 2020


In ArcIMS Author, the file-based images do not appear in the directory listing after changing 'Files Type' from 'Shapefiles' to 'Image Files'.

The same raster data can be accessed and added in ArcCatalog and ArcMap.


World files containing spatial reference information are not present for the file-based image. In order for a user to be able to add a file-based image layer in ArcIMS Author, an associated and valid world file must be present in the same directory as the image. A world file contains information regarding the transformation of image coordinates to real-world coordinates.

In general world files use the same name as the image, with a "w" appended. The following are examples of world file extensions for the following image types:

TIFF image: .tfw
MrSID image: .sdw
JPEG image: .jgw

ArcIMS Author is unable to read and render JPEG2000 images (.jp2) and their associated world files (.j2w). JPEG2000 files must be added to the map configuration file (.axl) using a text editor. Please see the article in the Related Information below section for JPEG2000 images.

Solution or Workaround

Create world files for each of the images to be used in ArcIMS Author. World files can be created using the create world file sample from the ArcObjects Online samples.

For ArcGIS 8.x users, click here to access the sample create world file utility.

For ArcGIS 9.x users, click here to access the sample create world file utility.

Other world file creation utilities can be found through ArcScripts.

After creating the world files, open a new session of ArcIMS Author. The images should now appear in the Add Layers dialogue after changing 'Files Type' from 'Shapefiles' to 'Image Files'.

    Article ID:000008436

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