Program to view what another Program is doing when it is run?

Hi all,

I am not sure what to call what I am looking for but here is some info for what I need as I am not even sure it exists.

I have a program on a PC (plfe.exe) that is running an Arcade Machine (UltraPin) Frontend, this Machine was built by a Manufacturer (Global VR) with a set Hardware design, I have just had to replace the GPU in it as the old one failed and the newer one is presenting some problems.

I am using a nVidia GPU now (9800) and when the program opens it is making changes in the nVidia Control Panel changing the Digital Vibrance setting from 50% to 20% and once I close the program and even reboot this setting stays the same and I have to manually change it back again which is telling me it makes changes in the registry, and once I fix it and rerun the program it just changes it back, its throwing all the colours out so I need to try and find a way to fix it.

I am looking for a program that I can run my program through so I can see what it is doing when it opens so maybe I can stop it making the changes to the GPU settings, I don��t have the source code for the original program either and cannot get it.

So if anyone has any ideas what I can do I would like to know, my Operating System Specs are Windows XP Embedded SP2 x86.

Thanks for reading and the help.

Kind regards,

Kevin