You may want to read this a couple of times..
New mars all ready to go&server 2008 32bit. Server is main domain controller. All major server roles working ok.
A while back all I had was old Pluto to use as the stepping stone for exchange whilst I take old mars off line and reconfigure into the new exchange server. Problem is Pluto did not handle being a exchange server so it crashed after working for a short time.
For exchange to work in a separate machine you have to run dcpromo and set up a second DC. Then install exchange. This I did for Pluto.
When Pluto died. I had to uninstall Pluto as a second dc on new mars. This was done very easy. As it happens far too easy, but I will get to that later
I have now got a new server for a while that I called Saturn that will run the software for exchange ok. (remember it only has to last a few weeks whilst old mars comes down and is reconfigured)
I installed server 2008. then ran the prerequisites for exchange, no problem. Then installed exchange. Great. When all installed and rebooted I find that the users from active directory are all ready in exchange? I had to instruct Pluto to go find users? I then see that Pluto is listed in exchange Mailbox, Clients, hub, its like a ghost and I cant get rid off, I obviously did not remove/demote Pluto correctly and am now paying the price. sorry for the long ramblings any ideas or pointers much appreciated.
Ps this system still in build stage but i would like to get in use soon, thanks again