[Specification of our environment] OS: Windows 7 (64bit) Two workstations: AMD FX 8150(64bit) Programming environment: Visual studio 2010 (64bit) I use MPICH2 64 bit in windows 64bit. and I've already finished sample test for communicate and Master PC and slave PCs. now, I need command which can search slave PCs. It can communicate with saster PC from CMD program Is there any command of CMD program to search a slaves PCs in workgroup from master PC? lastly, I'd appreciate if you let me know some materials to make wmpiconfig.exe thank you