Hi, I have a strange question, that i will like to ask here. We have som old PC,s at work 486 SX / DX, the reason for this is that there is some special application that can not run on fast PC's. What i will like is to make a Parallels SW to run the DOS OS but I need to control the CPU and memory so the guest OS do not get to fast. Do anyone know if I can control the CPU for the guest OS ? Best regards Soren Knudsen