Well, I sometimes promote LiberKey but I don't know if I do it by the right way...

Suggesting it:
How to update a setup folder? => http://superuser.com/questions/298934/h ... 988#298988
Custom app installer like Ninite? => http://superuser.com/questions/297577/c ... 587#297587

In general, mentioning LiberKey name :
How to use parameters when launching a Liberkey app? => http://superuser.com/questions/279370/h ... berkey-app
Windows XP command prompt rename command for this task ? => http://superuser.com/questions/276386/w ... -this-task

Any suggestions to how to do it better?

Suggesting it:
App store for Windows => http://superuser.com/questions/307983/a ... 260#308260