Hello, I am a new member to these forums. I decided to join after having trouble with a missing system32 folder, and finding the answer to my problem here. Hats off to Raven if you get this. Since you were the one with the answer. Your post to a similar problem solved mine. Anyways, I am currently having trouble with the ntvdm.exe file which emulates a 16 bit dos environment on a 32 bit system (XP Pro). The ntvdm.exe process is taking up about 98% of the CPU processing time and will not give it up to other programs. So my question is does anyone know how to "throttle" down the this process? I have played with the process priority in the task manager by lowering the ntvdm.exe's process priority which seemed to work but, after a restart the process is reset to the original priority. So I am looking for a perminent solution to the problem. I have heard that you can set process priority somewhere in the registry, but I have searched to no avail. Any feedback would be greatly appreciated.