We have set up an application of IIS 6.0 with standard compression for both
static and dynamic pages. The compression works fine. However, we have one
page which does a postpack to serve (download) files for users.
If the file being downloaded is a zip file and the user is using IE 6.0, a
file is downloaded but when the user goes to open the file they recieve the
message that the zip folder is "is invalid or corrupted". The file
sucessfully downloads and opens when using other browsers such as FireFox.
This problem does not occur for any other file type. It does not occur when
dynamic compression is turned off.
(I did post a similar query some months ago where a member suggested they
would be able to review the problem with further detail, however the link I
received to the query
http://www.microsoft.com/technet/community/newsgroups/dgbrowser/en-us/default.mspx?dg=microsoft.public.inetserver.iis&mid=ae7e0b03-8efb-40a9-a26b-bc983ebdaf58 no longer locates the issue).
Any ideas how to solve this issue of dynamic compress in IIS for zip files
being served using an aspx page and read using IE 6.0?