Hi Sutinee,
I believe we have solved you license issue. As for the registering of tsc64.dll, if this problem continues to persist, please follow the following instructions:
1) Open command prompt"-application as an administrator (right click on app to choose "open as an administrator).
2) Run LEAP\leap.exe /regserver
Note that it may be necessary to have LEAP already started (also run as an administrator).
3) In command prompt window, run:
regsvr32 /u LEAP\tsc64.dll
then
regsvr32 LEAP\tsc64.dll
This should resolve your issue.
Best,
Charlotte