I'm trying to create an add-on image for MS Visual Studio .NET 2003 from an
MSI based application object which is roughly 1GB in size. The problem is
that just before the creation of the image completes, I get the error
message "Cannot open or create cache destination file" and the resulting
..ZMG file appears to be undersized and corrupted.

The original MSI application object & supporting files do not seem to be
corrupted as the installation can be launched via NAL and completes
successfully. I have created many other add-on images in exactly the same
manner and have never come across this issue. Are there restrictions
regarding application size or number of files when creating an add-on image
in this manner? Any help is greatly appreciated!