Unlock and lock it doesn't matter, the key is I now can't install the exe file, so we request to upload the img file, thank you
You can unpack the exe-file with the latest Inno_unpack, then You get the Mapsource files en can make a registery entry with Mapsettoolkit of make a gmap with Javawa Mapreverseconverter.
After that unlock with the tool that Catymag give the link.