32bit:

cd "c:\program files\common files\microsoft shared\officesoftwareprotectionplatform"
osppsvc.exe
cd "C:\Program Files\Microsoft Office\Office14"
cscript ospp.vbs /sethst:yourkmshost.domain.com
cscript ospp.vbs /act

Reference Links:
Re-Arm: http://bit.ly/kz42HL
Activate: http://bit.ly/jy8lb2