Suzanne Tindal over at ZDnet talks about a recently-released list of programs that shows which apps will break or otherwise have problems with the upgrade to Vista SP1. Interestingly enough, the list is pretty small. She writes:

Without SP1 incompatibilities, Windows Vista is already facing an ingrained perception by enterprise users of incompatibility with old systems, said Joseph Sweeney, an analyst at Intelligent Business Research Services.

Issues of back compatibility require regression testing on old applications, making any deployment very painful to do in one install, he said. "In theory, you only have to fix it once, and you should be able to deploy it across your whole environment, but many organizations do not have a highly automated deployment."

The problems with SP1 will only make backward-compatibility issues worse, he said, especially since many companies have been waiting to deploy the operating system until the release of the service stack.

Click past the fold for the list...