Just an FYI. If you are running a dual x 8 core computer with Hyper-Threading [HT] turned on, Composite will not run and crash just after the splash screen.
2 CPUs x 8 Cores per CPU x 2 [HT] = 32 CPUs = Composite Crash!
There is a reference post here in The Area:
The temporary solution is to disable Hyperthreading. The Development team has been alerted of this issue.