>BUILD EXE (tcExe) FROM (tcPjx) RECOMPILE NODEBUG

Using the above command will work 'most' of the time. In my replacement Project Manager I had used the above command to compile the project. If there are classes held in memory, then the above command will fail to compile (will not remove the objects from memory). I noticed that if I compiled with the built-in Project Manager, it would succeed in building the project (apparently it was able to remove the objects from memory). I tried to explicitly remove the class objects by iterating through the files and issuing a CLEAR CLASSLIB command for each class. This still did not work with the BUILD command. I changed to using the Build method on the project object and it seems to work for me. Just my two cents in experience...