Hi Chris,

error #8 is a simple CRC-32 error and protects your clients. It is not really a "decompression" error per-se. The downloaded file is corrupt - similar to an incomplete ZIP file.

Code-signing is done on your .exe file only, not the cluster files! Installer integrity is another layer of protection and would not help to solve your problem. If you are sure that your uploaded files are 100% OK (no upload error), then it's caused by a download issue (not related to SetupBuilder or the installer, btw). Perhaps the virus definition file is buggy (and does not like your code-signing certificate) or it does not like your IP address (blacklisted).

In this specific case, it is very hard to find out what causes the (download) transmission error. The only good thing is that it is not caused by the installer. But unfortunately, this does not help you in any way.

Friedrich