I have got HP SSM working to install some drivers and HP software that does not install well any other way. It installs the drivers and software fine, but the task sequence always hangs when it gets to the end and tries to exit in a "not responding" state. If I force it to close, then the task sequence continues and the rest of the deployment goes on.
I thought maybe the last driver install was hanging, so I tried removing it, but the same thing happened when it got to the end of installing all the software, so it doesn't matter which softpaq installs last.
The task sequence works and all the software and driver softpaqs successfully install. The issue is that MDT does not cleanly exit this part of the task sequence.