how to interface sit with matlab 2010a and labview 2010

[toqeer.rauf]

yes, on my windows PC, although my model in simulink is real time

[Kilometers]

Are you familiar with this help article for building models? This one specifically refers to VeriStand, but the model build process should be similar for Simulation Interface Toolkit.  Are you following this process when you compile your model to call in Simulation Interface Toolkit?