[@Chemtable Software] That’s news but there is NO REASON to leave auto-update option checked regardless as long as updates to the SOS licensed version are not allowed… It is normal for update checks to inform giveaway users of updates but not warn them that applying the update will invalidate the giveaway license. If you have added code to recognise single version licenses maybe you should make that code disable auto-update check and grey out the control in the UI to let the users know it won’t even check for updates that are incompatible with the single version license?