QPSK Modulation

[KROO]

Do you know how to make a multisim simulation for QPSK mod?

[natasftw]

This is one of those times you should create a new thread.  What you're asking has nothing to do with the thread from three years ago. 

One is seeking a software solution (modulation toolkit) and one is seeking a hardware solution (multisim would be creating a circuit).

Create the new thread with what you've tried so far and what you're hoping to accomplish.