Restore Win2K Backup

Anybody ever seen this when trying to restore a Win2K backup file?

“Error Message “The Backup File Is Unusable” When You Try to Restore Backup File”

I’ve been looking for a possible piece of software that will allow me to restore at least someof the data I have in a seemingly useless 4 gig backup file.

Any help would be more than I’m getting from MicroSoft’s web site.