Hi,

My OPS is XP and service pack 3 installed.I cant install vs2008 service pack1,In log file i see 'Visual C++ 2008 SP1 Design-Time Components for x86 - KB947888' cant be installed. Error code is 1603.Last part of Installation file is here.

Returning IDOK. INSTALLMESSAGE_ERROR 
[Error 1335.
    The cabinet file 'patch.cab' required for this installation is corrupt and cannot be used. 
    This could indicate a network error, an error reading from the CD-ROM, 
    or a problem with this package.]
[1/12/2009, 10:14:50] 
   (IronSpigot::MsiExternalUiHandler::UiHandler) 
   Returning IDOK. INSTALLMESSAGE_ACTIONSTART 
   [Action 10:14:50: Rollback. Rolling back action:]
[1/12/2009, 10:17:29]
   (IronSpigot::MspInstallerT<class ATL::CStringT<unsigned short,class ATL::StrTraitATL<unsigned short,class ATL::ChTraitsCRT<unsigned short> > > >::PerformMsiOperation)
   Patch (C:\DOCUME~1\Cem\LOCALS~1\Temp\Microsoft Visual Studio 2008 SP1\VS90sp1-KB945140-X86-ENU.msp;
              C:\DOCUME~1\Cem\LOCALS~1\Temp\Microsoft Visual Studio 2008 SP1\VC90sp1-KB947888-x86-enu.msp) 
              install failed on product (Microsoft Visual Studio 2008 Professional Edition - ENU). 
   Msi Log: 
      Microsoft Visual Studio 2008 SP1_20090112_100005671-Microsoft Visual Studio 2008 Professional Edition - ENU-MSP0.txt
[1/12/2009, 10:17:29] 
    (IronSpigot::MspInstallerT<class ATL::CStringT<unsigned short,class ATL::StrTraitATL<unsigned short,class ATL::ChTraitsCRT<unsigned short> > > >::PerformMsiOperation) 
    MsiApplyMultiplePatches returned 0x643