Microsoft Service Pack 4 for Windows 2000 is compatible with Unity 3.1(5)?
Our policy is to qualify new service packs within 60 days of release. Here is a copy of the policy: http://www.cisco.com/en/US/products/sw/voicesw/ps2237/prod_pre_installat
"Within 60 days of an applicable Microsoft service pack release, Cisco will announce if the service pack can be applied to released Cisco Unity and Cisco Unity Bridge versions, and whether the service pack is recommended or required."
It really is important to hold off until we have completed qualification. Those who rushed to Windows 2000 SP3 prior to our qualification found that Microsoft make some changes which broke our TSP.
Hope this helps,