Hi Wee beng,
Talking about MPI Performance Snapshot we need to understand that we have 2 steps process: collecting of information and processing it.
We are not going to provide MPS collector for Windows but you can collect statistics from Intel MPI Library setting environment variable I_MPI_STATS=20. In this case Intel MPI library generates file "stats.txt" which contains almost all needed information about MPI functions. You can process it using MPS for Windows. MPS for Windows is available in ITAC 9.1.1 and later.
So, on Windows you will not be able to get information about internal MPI imbalance and about OpenMP imbalance but still can get some insight about MPI behavior.