Hi, I have already posted about a problem with VS 2005 Pro here http://www.msfn.org/board/Microsoft-Visual...l=Visual+Studio I have now moved onto VS 2008 Pro and am getting the exact same problem. It seems to be related to Windows Installer 3.1. Below is the last part of the log file. I can't attach my complete log file as when I hit the broswe button IE locks up (The machine I am writing this from is not the machine I am trying to deploy VS 2008 too ) When I run the VS 2008 Setup manually it completes without any problems. I'm trying to install it onto a PC running Windows XP inc SP3. I have checked Event Viewer in the Application log it states: Product: Microsoft Visual Studio 2008 Professional Edition - ENU -- Installation completed successfully. I have just read Microsofts install guide again and found reference to Network paths not exceeding 39 characters. The path to the Windows 3.1 installer on out network is 90 characters. I think that's the issue. Could someone please confirm? Log File: [05/28/08,11:48:19] Setup.exe: CSetupManager::RunInstallFromList(IP_PREINSTALL) completed [05/28/08,11:48:19] Setup.exe: ISetupManager::RunInstallFromList(IP_INSTALL) starting [05/28/08,11:48:19] Setup.exe: GetGlobalCustomProperty - Property: {092114C2-997D-4D68-8F3A-8BC2584FD23B} - PropertyName: Quiet Mode Setup - Value: [05/28/08,11:48:19] Setup.exe: GetGlobalCustomProperty - Property: {092114C2-997D-4D68-8F3A-8BC2584FD23B} - PropertyName: Quiet Mode Setup - Value: [05/28/08,11:48:19] Microsoft Windows Installer 3.1: ISetupManager::GetGlobalCustomProperty() failed to find global prop in CBaseComponent::GetGlobalCustomProperty() [05/28/08,11:48:19] Setup.exe: GetGlobalCustomProperty - Property: {BBE1827C-F2FD-4FDA-A6D6-C83B62FFFDCA} - PropertyName: compfailed - Value: 0 [05/28/08,11:48:19] Setup.exe: GetGlobalCustomProperty - Property: {E0875D42-A33D-4C64-81C9-167795F29CA4} - PropertyName: PathFromCartmanToRoot - Value: .. [05/28/08,11:48:19] Microsoft Windows Installer 3.1: GenericComponent Action: CreateProcess launched with cmd line : \\cam-carbona.students\apps\vs2008\vs2008\setup\..\wcu\msi31\WindowsInstaller-KB893803-v2-x86.exe /quiet /norestart [05/28/08,11:48:19] BWaitForMSI(): Verifying we're the only installation currently in progress. [05/28/08,11:48:19] BWaitForMSI(): Ready to proceed with installation. Continuing... [05/28/08,11:48:21] Microsoft Windows Installer 3.1: \\cam-carbona.students\apps\vs2008\vs2008\setup\..\wcu\msi31\WindowsInstaller-KB893803-v2-x86.exe exited with return value 1603 [05/28/08,11:48:21] InstallReturnValue: GFN_MID Windows Installer 3.1, 0x643 [05/28/08,11:48:22] Setup.exe: AddGlobalCustomProperty [05/28/08,11:48:22] Microsoft Windows Installer 3.1: ***ERRORLOG EVENT*** : Error code 1603 for this component means "Fatal error during installation. " [05/28/08,11:48:22] Setup.exe: AddGlobalCustomProperty [05/28/08,11:48:22] Microsoft Windows Installer 3.1: ***ERRORLOG EVENT*** : Setup Failed on component Microsoft Windows Installer 3.1 [05/28/08,11:48:22] Setup.exe: GetGlobalCustomProperty - Property: {BBE1827C-F2FD-4FDA-A6D6-C83B62FFFDCA} - PropertyName: compfailed - Value: 0 [05/28/08,11:48:22] Microsoft Windows Installer 3.1: CBaseComponent::LaunchWatson() - Obtained CSetupWatson instance [05/28/08,11:48:22] Microsoft Windows Installer 3.1: ISetupManager::GetGlobalCustomProperty() failed to find global prop in CBaseComponent::GetGlobalCustomProperty() [05/28/08,11:48:22] Microsoft Windows Installer 3.1: ISetupManager::GetGlobalCustomProperty() failed to find global prop in CBaseComponent::GetGlobalCustomProperty() [05/28/08,11:48:22] Microsoft Windows Installer 3.1: CBaseComponent::LaunchWatson() - Creating a PreReq Watson report with manifest: C:\DOCUME~1\ADMINI~1\LOCALS~1\Temp\MAN5F.tmp Thanks in advance for any help. Cheers Shaun