Maybe one thing to mention: I don't need to install the .NET separately because it's part of the installation of Trados (using it's own script). Here the log of the .NET installation but I'm sure it doesn't come from there. Code: [05/31/08,08:24:52] ========== Logging started ========== [05/31/08,08:24:52] ===================================== [05/31/08,08:24:52] No language specified in ini file default to OS language [05/31/08,08:24:52] Set lang to 1031 [05/31/08,08:24:52] Pending Reboot Table state : Logging start [05/31/08,08:24:52] _________________________________________ [05/31/08,08:24:52] There are no queued up pending reboot entries. [05/31/08,08:24:52] Logging property values [05/31/08,08:24:52] PROPERTY ProductName Microsoft .NET Framework 2.0 [05/31/08,08:24:52] PROPERTY C:\windows\temp\IXP000.TMP\netfx.msi [05/31/08,08:24:52] PROPERTY ProductMsi netfx.msi [05/31/08,08:24:52] PROPERTY Ini Filename C:\windows\temp\IXP000.TMP\install.ini [05/31/08,08:24:52] PROPERTY ProductCode [05/31/08,08:24:52] PROPERTY ProductRegKey SOFTWARE\Microsoft\NET Framework Setup\NDP\v2.0.50727 [05/31/08,08:24:52] PROPERTY ProductRegValue OCM [05/31/08,08:24:52] PROPERTY ProductRegData [05/31/08,08:24:52] PROPERTY ProductSupportURL http://go.microsoft.com/fwlink/?LinkId=45396 [05/31/08,08:24:52] PROPERTY DefaultDirInstallToken URTInstallPath.3643236F_FC70_11D3_A536_0090278A1BB8 [05/31/08,08:24:52] PROPERTY Install 0 [05/31/08,08:24:52] PROPERTY SupportWin9X 1 [05/31/08,08:24:52] PROPERTY MinNTVersion 5.0 [05/31/08,08:24:52] PROPERTY CheckAdminRights 1 [05/31/08,08:24:52] PROPERTY BlockOn64Platform 1 [05/31/08,08:24:52] PROPERTY ShowFeatureOptions 0 [05/31/08,08:24:52] PROPERTY ShowDestinationFolder 0 [05/31/08,08:24:52] PROPERTY LogFilePrefix dd_netfx20 [05/31/08,08:24:52] PROPERTY CustomTextPrefix CustomText [05/31/08,08:24:52] PROPERTY MSI Log name /qb [05/31/08,08:24:52] PROPERTY Msi Command Line properties [05/31/08,08:24:52] PROPERTY VerboseLog 1 [05/31/08,08:24:52] PROPERTY RebootMode 1 [05/31/08,08:24:52] PROPERTY UILanguage 1031 [05/31/08,08:24:52] PROPERTY BitmapFile C:\windows\temp\IXP000.TMP\netfx.bmp [05/31/08,08:24:52] PROPERTY User Canceled 0 [05/31/08,08:24:52] PROPERTY Red [05/31/08,08:24:52] PROPERTY Green [05/31/08,08:24:52] PROPERTY Blue [05/31/08,08:24:52] PROPERTY Current Dir C:\windows\temp\IXP000.TMP\ [05/31/08,08:24:52] PROPERTY Temp Dir C:\windows\temp\ [05/31/08,08:24:52] PROPERTY Usage Mode 0 [05/31/08,08:24:52] PROPERTY Admin Mode 0 [05/31/08,08:24:52] PROPERTY Maintenance Mode [05/31/08,08:24:52] PROPERTY Silent Mode 1 [05/31/08,08:24:52] PROPERTY Silent Mode Uninstall 0 [05/31/08,08:24:52] PROPERTY WatsonSilent 0 [05/31/08,08:24:52] PROPERTY WatsonUI 0 [05/31/08,08:24:52] PROPERTY Silent Mode UI string /qb [05/31/08,08:24:52] PROPERTY SkipAllChecks 0 [05/31/08,08:24:52] PROPERTY WatsonGenerateManifestOnly [05/31/08,08:24:52] PROPERTY UninstallWarning 1 [05/31/08,08:24:52] PROPERTY ControlMSIService 1 [05/31/08,08:24:52] PROPERTY RTL Language 0 [05/31/08,08:24:52] PROPERTY PostSetupCommandRegKey [05/31/08,08:24:52] PROPERTY GlobDataINIPresent [05/31/08,08:24:53] Checking Windows Installer version... [05/31/08,08:24:53] msi.dll loaded ok [05/31/08,08:24:53] Looking for: 2.0.0 [05/31/08,08:24:53] Found: 3.1.4000 [05/31/08,08:24:53] Windows Installer version ok [05/31/08,08:24:53] Finished Checking Windows Installer version. Return code 0 [05/31/08,08:24:53] Entering CMsiInstaller::ThreadInit [05/31/08,08:24:53] Leaving CMsiInstaller::ThreadInit [05/31/08,08:24:53] Checking Windows Installer version... [05/31/08,08:24:53] msi.dll loaded ok [05/31/08,08:24:53] Looking for: 2.0.0 [05/31/08,08:24:53] Found: 3.1.4000 [05/31/08,08:24:53] Windows Installer version ok [05/31/08,08:24:53] Finished Checking Windows Installer version. Return code 0 [05/31/08,08:24:53] Entering Silent Mode CSilentNavigator::Start [05/31/08,08:24:53] Running all checks [05/31/08,08:24:53] Running system checks [05/31/08,08:24:53] SYSTEM CHECK: : One instance of setup running Passed [05/31/08,08:24:53] SYSTEM CHECK: : Administrative rights check Passed [05/31/08,08:24:53] SYSTEM CHECK: : Minimum NT Version 5.0 Passed [05/31/08,08:24:53] SYSTEM CHECK: : Runing on 64 bit wow check Passed [05/31/08,08:24:53] SYSTEM CHECK: : OCM product installed Passed [05/31/08,08:24:53] Running prereq checks [05/31/08,08:24:53] PREREQ CHECK: : Microsoft Internet Explorer 5.01 Passed [05/31/08,08:24:53] Checking Windows Installer version... [05/31/08,08:24:53] msi.dll loaded ok [05/31/08,08:24:53] Looking for: 3.0.0 [05/31/08,08:24:53] Found: 3.1.4000 [05/31/08,08:24:53] Windows Installer version ok [05/31/08,08:24:53] Finished Checking Windows Installer version. Return code 0 [05/31/08,08:24:53] PREREQ CHECK: : Microsoft Windows Installer 3.0 Passed [05/31/08,08:24:53] PREREQ CHECKS: Passed [05/31/08,08:24:53] Running block checks [05/31/08,08:24:53] BETA CHECK: Passed [05/31/08,08:24:53] Entering CMsiInstaller::IsInstalled [05/31/08,08:24:53] Entering CMsiInstaller::GetProductCode [05/31/08,08:24:53] Leaving CMsiInstaller::GetProductCode [05/31/08,08:24:53] Leaving CMsiInstaller::IsInstalled [05/31/08,08:24:53] Entering CMsiInstaller::RegisterUIInterfaces [05/31/08,08:24:53] Leaving CMsiInstaller::RegisterUIInterfaces [05/31/08,08:24:53] Entering CMsiInstaller::BeginInstall [05/31/08,08:24:53] Entering CMsiInstaller::GetMscoreeVersionFromSystem [05/31/08,08:24:53] ***WARNING***: Cannot obtain MSCOREE.DLL version at C:\windows\system32\mscoree.dll [05/31/08,08:24:53] Entering CMsiInstaller::GetMscoreeVersionFromMsi [05/31/08,08:24:53] Version of mscoree.dll in the msi package is 2.0.50727.42. [05/31/08,08:24:53] Leaving CMsiInstaller::GetMscoreeVersionFromMsi [05/31/08,08:25:01] Entering CMsiInstaller::SuppressReboot [05/31/08,08:25:01] Leaving CMsiInstaller::SuppressReboot [05/31/08,08:25:01] Entering CMsiInstaller::Stop [05/31/08,08:25:01] StopDarwinService: Entering the function [05/31/08,08:25:01] StopDarwinService: Service was already Stopped! Return TRUE [05/31/08,08:25:01] Darwin service was successfully stopped after INSTALL [05/31/08,08:25:01] Leaving CMsiInstaller::WorkerThread [05/31/08,08:25:01] Leaving CMsiInstaller::Stop [05/31/08,08:25:01] Leaving CSilentNavigator::Start [05/31/08,08:25:01] Process returning code 1603 [05/31/08,08:25:01] Pending Reboot Table state : Logging start [05/31/08,08:25:01] _________________________________________ [05/31/08,08:25:01] There are no queued up pending reboot entries. [05/31/08,08:25:01] =========== Logging ended =========== [05/31/08,08:25:01] ===================================== [05/31/08,08:25:01] [05/31/08,08:25:01] [05/31/08,08:25:01] Error 1603 had been occurring for 8 months now, with or without the above error so I don't see the problem there.