>For the software package I work on, 90% of the employees here, do 80% of there daily activities in the one app. When this app was introducted to this company they were using open office with plans to move their Win95/98 machines to Linux. This one app kept this business on Windows, mostly XP Pro now, and because the app was designed to integrate with Office they purchased Office for everyone that uses it. And because everyone has office they may as well use exchange for their email server. And because they out grew dbfs SQL server has been purchased.
>
>The IT department here was determined to never buy from MS again. One good app can change everything. I do not think this is a special or rare case. I do think MS has a decent idea how much indirect revenue VFP generates and is taking a calculated risk that most remaining VFP developers will go the .NET route.
>

I am going to let this point drop since I don't have any hard data to offer. Maybe my ass-umption was incorrect.