> reported errors, or a header crc32 mismatch was found.' What does that mean?

It means your zipfile is most likely corrupt. cmpro decompresses the archive to memory, recalculates the crc32 values and compares it against the one in the datfile *AND* against the data found in archive header.

There are NO reliable sources. Bad zips are a common thing.

If you got the problem that one and the same archive produces such a problem randomly (i.e. one scan it's fine, the other scan it's bad, then fine...then bad..). Then your system may have a problem. This can be either a different program interfearing (e.g. Virusscanners) or RAM/HD is bad.

What you can do is: simply mail me such a zip and I'll have a look (if mail doesn't work, put it somewhere where I can grab it).
..or simply open the archive in question with a common zip program (winzip/winrar/7zip/etc..) and run a test operation.


Roman Scherzer