Can I run a sikuli script without being logged in. --- simply no

not possible for Sikuli: you need an active, real monitor.

Hence you have to be logged in.

Put these commands in a batch file and make the scheduler to call this before launching the script. These commands will make sure that current logged in user is disconnected but keeps the session active, which implies it will have an active screen. This will work provide that someone is always into the machine and also you need disable your screenlock.

tscon.exe 0 /dest:console
tscon.exe 1 /dest:console
tscon.exe 2 /dest:console

Sean, if this works then let Raiman know, so that he can change the subject of the question accordingly!!!!!!!!!!!!

"into the machine"? What does that mean? So for this to work I need to disable screenlock?

I was thinking of using an autologin tool: http://technet.microsoft.com/en-us/sysinternals/bb963905.aspx
This will auto log me in if I'm not already logged in, then run the sikuli script. The only thing I'd like to do is figure out a way to disable my monitor, so it doesn't look like it's on. It be cool if I could figure that out.

The only other way I could think this would be possible is if I used a VM. Start up a separate VM as a background process, and run a sikuli script. If that's even possible in Windows 7. I don't know. I could do this easily in linux, windows is so weird.

Akbar, if you're certain using tscon.exe will work. Could you send me a test script to test on my machine, say something that starts sikuli and maybe opens and closes a browser, so I can see it work?

This is how you can do this.
1.Create a scheduler to call the batch and sikuli script
2.Login to the test machine and let it lock
3.When the scheduler runs, tscon.exe will log you out but keeps the session active(screen is active) and sikuli script will run
4.If you sikuli script runs for longer time then you will have disable screen lock on the test machine

Refer to Sikuli documentation on how to open browser, command is openApplication...