Up to MemBrain version 03.06.02.00 license installation can fail under Win7 due to missing file access rights even when logged in as asministrator.
In this case please copy the received license file 'License.txt' manually into the MemBrain installation directory and restart MemBrain.
A fix for this is planned to be included in the next MemBrain version.
Regards
License Installation under Win7
License Installation under Win7
Thomas Jetter