Can MMC be conigured to connect to a specific DC upon opening?

You can't do that natively within the MMC functionality.

The default behavior is in fact based on the site topology i.e the closest DC.

dsa.msc /server=<dc name> ... if you want to have a file You can wrap it in some cmd and execute this.

--

Tomek Onyszko

http://blogs.dirteam.com/blogs/tomek/ (EN)

http://www.w2k.pl (PL)

Well ... it is documented on technet ... OK- this is pretty old document:

Managing Active Directory from MMC

http://technet.microsoft.com/en-us/library/cc757197%28WS.10%29.aspx

--

Tomek Onyszko

http://blogs.dirteam.com/blogs/tomek/ (EN)

http://www.w2k.pl (PL)

I wish stuff like this was better documented. I knew you could do something similar Compmgmt.msc but with that MMC the switch is /computer=XXX

I suspected the same was true of DSA.MSC but don't know why I didn't think of trying /server.