If the VS 2005 or VS 2008 IDE is open IsSABld.exe fails with ISDEV : error -5081: Could not write to setup.ini If I close the IDE IsSABld.exe builds the msi fine. Im using InstallShield 10.5 and IsSABLD.exe is used to build the MSI from the command line. If anyone has any idea's that would be appreciated. TIA