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A Service Pack installation may fail with an 'Error 1335' message similar to the following:
"The cabinet file 'PCW_CAB_78CB96C9' required for this installation is corrupt and cannot be used. This could indicate a network error, an error reading from the CD-ROM, or a problem with this package."
The actual cabinet (CAB) filename may differ from the above example.
A CAB file in the service pack installation package is corrupt.
When downloading the installation files for service packs or patches from the Internet, certain proxy server or firewall settings can cause the .cab file to become corrupted.
Either download the service pack or full software product setup on a network that is not managed by a proxy server, or contact ESRI Customer Service to request a copy of the required installation media (DVD).