I am using Keil simulator Uvision2 V2.10 for C167 family. I would like to know if it is possible to simulate two C167 instances on the same PC (WinNT) and debug simaltaneously. My application requires lots of serial communication between the two C167s. I do not want to assign COM1 for one one processor and COM2 for another processor and connect both the ports by a serial cable; as I have to save one of the COM ports for some external communication from one of the processors. Thanks in advance.