Compressed Files Content Group Is Ignored

When you try to use a Site and Content rule that specifies "Compressed Files" as a content group, the rule may ignore compressed files content/mime types.

This problem can occur because the "application/x-zip-compressd" MIME type (listed by default in the Compressed Files content group) is mis-spelled.

This problem was corrected in Internet Security and Acceleration Server Service Pack 1.

For additional information, click the article number below to view the article in the Microsoft Knowledge Base:

Microsoft has confirmed that this is a problem in the Microsoft products that are listed at the beginning of this article.

You can use Internet Security and Acceleration (ISA) Server 2000 to create a Site and Content rule that denies users from downloading compressed files. This is done by specifying "Compressed Files" as a content group in the rule. One of the MIME types that is listed in the "Compressed Files" content group is "application/x-zip-compressd". This MIME type is mis-spelled, and should be "application/x-zip-compressed". Because this MIME type is mis-spelled, users may be able to download compressed .zip files.