Ok, I've seen this posted before albeit a little differently so I figured I'd try it and see what happens. Anyway, installed Spybot ok using the following line: REG ADD %KEY%\030 /VE /D "Spybot SD 1.3" /f REG ADD %KEY%\030 /V 1 /D "%systemdrive%\Install\Applications\spybot\spybotsd13.exe /VERYSILENT /NOCANCEL /TASKBARHIDE /AUTOCLOSE /DIR=\"%systemdrive%\Program Files\Spybot\" /group=\"Spybot\"" /f Notice I changed the install directory and the group. Everything installs with this. Then later on I try to update Spybot using the following: REG ADD %KEY%\075 /VE /D "Spybot Update" /f REG ADD %KEY%\075 /V 1 /D "\"%systemdrive%\Program Files\Spybot\spybotsd.exe /taskbarhide /autoupdate /autoimmunize /autoclose\"" /f When this line executes, I get the following error: Is my syntax wrong or is a file actually missing or what? I think I am using the \" properly here since the directory has a space, but can't find anything else wrong with this. Note: Executing this line from a command prompt in the directory the program is in (C:\Program Files\Spybot) works as well, so I'm stuck.