I think there is an issue relating to when the msi is on a remote share. I don't remember the error code, but looking it up on the MS KB gave me the workaround. Workaround (for unc path issue is to copy the package locally and install from there. Timothy R. Mangan - Founder, TMurgent Technologies tmangan@xxxxxxxxxxxx www.tmurgent.com (+1)781.492.0403 _____ From: windows2000-bounce@xxxxxxxxxxxxx [mailto:windows2000-bounce@xxxxxxxxxxxxx] On Behalf Of Bill Beckett Sent: Monday, December 01, 2003 10:54 AM To: 'thin@xxxxxxxxxxxxx'; 'windows2000@xxxxxxxxxxxxx' Subject: [windows2000] Installer Has anyone ever had a problem with the Windows Installer Service on a Terminal Server, W2K? Whenever I try to install a program it bails out with an error 18 and tells me there is a problem with Windows Installer. I've tried msiexec /unregister and then registering it again per Microsoft's site but to no avail.