I wrote a simple script that will delete the security PASSWORD for most Win CE based F, Z, and X series units. I can't say whether it will work with the very old units, and it won't work with the model numbers ending in 50 or greater, or Nex units. If your model isn't included, look elsewhere (don't post here) -there's probably already a thread in the proper sub-forum for your unit.
No need to install Condi's Hackmode or learn the complexities of TestMode. It removes the password entirely - unlocking the unit. It also saves the existing PASSWORD.DAT file (on the SD) before removing it.
Security Password Removal Script
Please post all comments in the original thread (linked above) so it is easier to monitor.