Got my fingers crossed here - have been writing a windows service for the contract I am on and guess what under vista home premium which came with the lappy you cant debug as you cannot get trusted authentication (Has been fine at home as have ultimate on this machin) .....
So my options were put the clients xp professional build on or try out windows 7 RC (Ultimate) - or of course pay for upgrade to vista ultimate.....
Well not hard to guess which way I went.
OS is installed, now installing the development tools and hoping I dont come across any huge hurdles.... Will let you know if I find anything intriguingly different between vista and W7...