I have a client who just got bought out by another company. Company A has a 2003 dc and exchange 2007 (two separate servers), as well as a sql server and a couple of citrix servers. Company B (the company who bought the other) has a 2008 r2 dc (in fact they have 2 2008 r2 dc's) and an exchange 2007 (which was a dc, but we moved the roles off of it and demoted it to a member server).
We need to merge the two domains to the Company B domain. Ultimately all users would log into the Company B domain, users who were in Company A would still retain their Company A email, but users from Company B should be able to view Company A user calendars and other shared resources.
Company A needs to be able to function as normal but under the Company B domain. I'm probably not doing a good job of describing this but ask me any questions and I'll do my best to answer them.
So my question is how do I do this? What's the logical process and is the process documented anywhere? Thank you in advance...