To run an autohotkey script on startup (from autohotkey FAQs):
- Find the script file, select it, and press Control+C.
- Press Win+R to open the Run dialog, then enter shell:startup and click OK or Enter. This will open the Startup folder for the current user. To instead open the folder for all users, enter shell:common startup (however, in that case you must be an administrator to proceed).
- Right click inside the window, and click "Paste Shortcut". The shortcut to the script should now be in the Startup folder.