When the Windows Installer Setup engine is started from a CD-ROM, you receive:

Internal Error 2351                               Internal Error 2355.
If you ignore the error, your software will probably malfunction.

The problem is the result of the Windows Installer not properly extracting files from a .CAB file.

Window 2000

Microsoft has included the fix in Service Pack 2.

Windows NT 4.0

Microsoft has provided a patch: