Have you tried the Event Viewer (in Windows Adm. Tools)? Should give you some clues about what's happening. -- View this message in context: http://plone.293351.n2.nabble.com/Windows-XP-Zope-instance-wont-start-Plone-4-0-2-tp6013202p6014509.html Sent from the Installation, Setup, Upgrades mailing list archive at Nabble.com.