Having trouble using psservice and sc.exe between Windows Server 2008 machines
Solution 1:
Try adding setting [HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\ Policies\system\LocalAccountTokenFilterPolicy] = 1 and rebooting.
This comes from items 30 and 31 in FAQ: Common PSTools Issues and Description of User Account Control and remote restrictions in Windows Vista and helps turn down some of the UAC restrictions related to Administrative access across the network.