Thanks for the feedback. Not much space left to free up unfortunately. These are older Win2k Servers so I only have 8GB partitions. The apps running on them are taking up over 5GB. Definitely time for new hardware, no doubt but as long as my customer fields these I have to meet the IA requirements.
I'm working off of the old instructions from when they upgraded to MR6 a few years ago, so I'm trying to follow what they did as I try to upgrade to MR9. I'm going into the following path: Symantec_10.1_MR9\CD1\Rollout\AVServer\Server\NT and trying to run setup.exe. Basically, after clicking next twice I get a notification that says I've got 1GB left and I need 2.5 GB. Thats where it stops.