Al_Po,

Ahhh, I was wondering what that was for! Well the problem is that when I use that exact line, I get the "system can't find the file specified" error from @SERROR. I did however find out something interesting. After I wrote the reg key to HKCU\Control Panel\Desktop I restarted the computer and logged back in, then checked the registry for all instances of the key that I wrote, i.e. "logon.scr". I found one, in HKCU\Control Panel\Desktop. I then did a manual change to the screensaver to change it to mystify. I checked HKCU\Control Panel\Desktop and noticed that it had changed to C:\WINNT\system32\ssmyst.scr from C:\WINNT\system32\logon.scr. I did another search, this time for ssmyst.scr and found TWO instances of the value. One is HKCU and one in HKU\SID. So apparently when I am writting to HKCU while logged in, it is not updating the HKU\SID registry location. This is also a fresh installation with all the windows updates/service packs etc. WTF? Think I should just write to both locations? And what about doing it remotely?
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Micah Davis "A truly wise man never plays leapfrog with a unicorn."