I know I can change the settings for the screensaver in Windows XP from the command line by updating the registry as follows:
regedit.exe /s settings.reg
Where settings.reg contains:
Windows Registry Editor Version 5.00 [HKEY_CURRENT_USER\Control Panel\Desktop] "ScreenSaveTimeOut"="7200" "SCRNSAVE.EXE"="C:\\WINDOWS\\system32\\scrnsave.scr"
However, the settings do not take effect until I log out and back in. If I change the settings via Display Properties they take effect immediately.
Yes, it is Windows XP. Yes, there's a reason for it.
I know about SetScrTimeout.exe so I know it can be done. I can't use that tool on my system though and would prefer something homegrown.
How can I make these changes take effect immediately when changing the registry from the command line?