Here is the BAT file I created last night. You'd want to run it from your MAS90 directory.
It creates a directory one level above where you run it called SageTemp.
It copies those temporary WRK and WORK files, *.BAD, *.BAK, *.RP_, and *.OLD files to that directory and then deletes them.
I didn't feel like figuring out how to Zip them up, but I may get bored at some point in the future.
No warranty included. Use at your own risk. Yada yada!