>Limitations as to performance and users is what I was referring to. I realize that MSDE is SQL Server...just many of the things that make SQL Server great, like simultaneous users, scalability, etc. are not available. Am I also correct that MSDE does not include security?

Graig,

MSDE's web site state: Enable security integrated with Windows NT

http://msdn.microsoft.com/vstudio/msde/default.asp