>Is there a way to find ALL usages of a particular FoxPro command? In this case, I need to find EVERY usage of SYS(2015) and/or the ALIAS argument in a USE statement.

Ahhh. I've seen this 3 times so far (including one of my apps!). The thing to do is just do a windows search in your app directory for any files containing it (SYS(2015)), then open all of them up and do replaces. Thats all I can think of. How many spots have you used this? It wasn't that many for me.