Trick Windows into using a newer version of Ghostscript
Background For an unattended installation of a well known ticketing application, I ran into a application requirement of Ghostscript 7.05 for certain report functionality to work properly. Unfortunately, GS 7.05 cannot be installed silently due a bug in the installer. To work-around this, I installed Ghostscript 9.02 using the silent installer switch, but the ticketing software would not generate PDF reports as it was unaware of the new GS version with error "GhostScript version 7.05 is required..." Steps To remedy this, we added the registry keys for 7.05, but pointed them to the 9.02 installation directory. This is how we did it (using a batch file): REM Silent install of Ghostscript 9.02 C:\gs902w32.exe /S REM Import Ghostscript 7.05 registry hack regedit.exe /s "C:\gs.reg" Here are the contents of "gs.reg": Windows Registry Editor Version 5.00 [HKEY_LOCAL_MACHINE\SOFTWARE\GNU Ghostscript] [HKEY_LOCAL_MACHINE\SOFTWARE\GNU Ghostscript\7...