Description: Unable to delete file in .cm.dir/dat

Solution:  This error means CopyMinder was unable to delete a file in the <program name>.cm.dir/dat directory. The usual reason is to do with file access rights.

The most likely cause of this is that they are using multiple user logins, probably under Vista.  Using CMInstall.exe should solve any problems to do with access rights.

Alternatively, their directory could have become corrupt.  They should run the Windows Chkdsk utility to detect/repair any problem.