Registry cleaning necessary ?Solved

Hi,On my development computer where I installed and activated a lot of time, I now have some activation problems, with a former version of my program which was activating properly and which is still activating properly on other machines. My procedure was this one :I removed any version of the program. I installed then one which was working before. I deactivated all keys I could have had before from limelm dashboard. I then activated the program and ran it. Then if I try to run other instances of the program (at the same time or successively), even if the dashboard says it's activated, IsGenuine returns TA_E_ACTIVATE.

What could be the reason of that ? Some badly cleaned registry keys ? Connection problems ? Do you have any tool to clean any limelm preexisting key in the registry ?

Regards,R.