Enter yout localcode (fingerprint from echoid/wechoid).
Select license expire date (WARNING!!! 1 year max).
Generate your license file (it took few seconds - just wait confirmation for generator).
Rename generated file to "lservrc" and copy to corresponding program dir.
Above procedure should works in Windows XP, Windows vista, Windows 7 and Windows 8. Tested and working in both x86 and x64 systems. (32-bit and 64-bit OS).
But if you face any problem with generating license file, you may required to boot your computer in Safe Mood and run the generator file. This will definitely works for you.