It is possible to install Groove v3.1 on a server, specifically SBS2K3.
Installation of Groove v3.1 on Citrix servers (with W2K3 servers) are
possible as well (see Groove partner PopG).
There is a Groove space that's devoted to the installation & frustration of
deploying Groove on W2k3-based servers. Drop me an email for an invitation.
SBC
e: sbc111 ATNOSPAM gmail DOT com