Here's how I got it to work: NUMBER stdOutHandle; NUMBER stdErrHandle; SECURITY_ATTRIBUTES securityAttributes; begin // redirect stdout and stderror. need to use the win32 CreateFile // because the installshield functions return non-win32 handles securityAttributes.nLength = SizeOf(securityAttributes); securityAttributes.bInheritHandle = TRUE; stdOutHandle = KERNEL32.CreateFileA(stdOutFile, (GENERIC_READ | GENERIC_WRITE), FILE_SHARE_READ, &securityAttributes, CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL); stdErrHandle = KERNEL32.CreateFileA(stdErrFile, (GENERIC_READ | GENERIC_WRITE), FILE_SHARE_READ, &securityAttributes, CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL); LAAW_STARTUPINFO.hStdInput = NULL; LAAW_STARTUPINFO.hStdOutput = stdOutHandle; LAAW_STARTUPINFO.hStdError = stdErrHandle; LAAW_STARTUPINFO.dwFlags = LAAW_STARTUPINFO.dwFlags | STARTF_USESTDHANDLES; LAAW_PARAMETERS.bInheritHandles = TRUE; launchAppResult = LaunchAppAndWait(app, args, LAAW_OPTION_WAIT | LAAW_OPTION_HIDDEN); CloseFile(stdOutHandle); CloseFile(stdErrHandle); ... View more