Hi Pyscripter,
Thanks for replying and great suggestion. I just tried it and when I import System.Threading it compiles as expected. However when I type "System.Threading." into a procedure expecting the autocomplete to have TParallel.For in it's list it's not there. It recognises System.Threading but TParallel.For doesn't appear to be available.
I suspect I'm missing something really obvious...
Cheers
Matthew