Do the following:

1) Uninstall the Captain Sim C-130
2) Remove the C130XPRO entry from the Windows registry
3) Reinstall the Captain Sim C-130

You must do step #2 before you do step #3. Do NOT do a restore on your computer, between step #2 and #3. The, when you reach #3, the installer should ask you to Activate Online because you have deleted the entry in the registry.
If you don't remove the registry entry for the Captain Sim C-130, the installer believes it is already activated and won't ask you to activate it again.

Hope this helps.

Mark