Will SEP 11.0.4 run under WIndows Server 2008 R2 SP1?

Greetings,

Currently using 11.0.4 in a server 2003 environment.  Getting ready to retire that server and use a 2008 server R2 to house SEP 11.

WHen we install the product it seems to get through most of the process and then it rolls itself back.  THought before I waste a bunch of time trying to make this work, I better check to see if it might be a simple matter of "you can't get there from here" e.g. not compatible.  Please advise

Thanks