You can access the Context Menu Item by holding down Shift + right-click on a file or folder.
If you want to access the Take Ownership Context Menu Item on an exe file, you must merge "RunAsAdmin_Exe-.reg"; this reg file removes the "Run as Administrator" Context Menu Item from all exe files (they both use the runas key). Merge "RunAsAdmin_Exe+.reg" if you want to restore the "Run as Administrator" Context Menu Item.
Install: Merge TakeOwn+.reg
Uninstall: Merge TakeOwn-.reg