Software or API?

Does anyone know of a software package or even an API that could be used 
to find from the object of the program what the "Level Check ID" would be 
for files and then be able to check the object description of the files 
and see if a program would need to be recompiled?

Reason being is we have a vendor package where only custom and our own 
mods are in our change management system, but  if the vendor makes a 
change to a base file (not in CMS) then we have programs that have no 
other changes and they fall "thru the cracks" so to speak until they are 
run.  Then we know big time about the Level Check.

I don't off hand remember anything like this and don't remember any API's 
that can do this, but that doesn't' mean squat.

Thanks for any recommendations or suggestions you can make.

Regards,

-- Jim