A FoxBASE+ app I wrote in 1987 recently celebrated it's 11th anniversary. A large amount of the source code is still unchanged even though the app is now running under VFP 5. It ran under FB+ and then FPD 2.0 until '96. It's a huge app, and the client has been kinda afraid to replace it....if it ain't broke, don't fix it.

I was wondering what was the longest running Fox app you all have had? What made it so successful? Just curious.