I have installed the tools and I have assigned the permission but I can't install the rest of exchange. Should I try and install forestprep from the other server? or what should I try to do to get exchange installed? This is the second attempt at installing it, the first attempt went well as I had it installed but there was an Active directory problem so I had to reinstall 2003 server on the server again, has the PDC remembered that exchange was installed? how would I work around this as forestprep is not running still. If running it from the other server will work or there is another option please let me know.