Parts of PJ require it to be installed and configured since it is based
on a TSR.  You can use PJ without "Bak" file protection without
installing.

Parts of the program CBCONFIG may be run to get a flavor of the type
of user interface ComeBack uses.

Please install PJ by unzipping PJ110.ZIP and running the 
installation program (INSTALL.EXE) to fully see the
advantages of PJ.  

My partner and I have used PJ for 2 years and would never develop
software without it!  Give it a try.