Hey John,

Does it solve the problem by making an occasional (say once every 1000 iterations of the loop) DoEvents() call inside SlowHit()?

>What you do now is fire up two instances of VFP and in each instance of VFP, create an instance of this class. In one instance, invoke the SlowHit() Parameter passing the number 35 to make the method run for 35 seconds. Once you have done this, quickly go to the other VFP session and invoke the fasthit() method. You will see things hang until the slowhit is done in the other session. Once that is done, the fasthit method will come back.