It seems that archive from the link you provided contains old version of the application (5.40), this link will be fixed, correct version (5.59) is the one I provided above:
http://www.2manuals.com/WIC/wicreset.exe
Actual activation sequence is generated remotely, license.exe only exchanges data between the printer and the server. Even if it wasn't the case, activation data must be written to the printer somehow, it would be useless if we just send it in the email.