I have an project that contains a non visual class and a few other related files. When I try to rebuild (rebuild all) the app that is used for distributing this file, I get an error 41 .... .vct is missing or invalid. There is not a.vct file for the .vcx file. I recently was hired as VFP programmer to handle an existing program that is in production. I have a couple of years experience in Fox for Windows 2.5, but had no prior experience in VFP. I notice that each time I rebuild the app (not rebuilding all) that the .app file gradually becomes larger and I think that rebuilding all will cut some of the deadwood out and cut down on the size of the file, but then I can't rebuild all. Help!