About two months ago I published a guide on the use of the Creation Kit with both Enderal FS and Skyim LE. You will find this guide here.

I have completely updated the guide and the batch file for fast switching of the Creation Kit between Enderal FS and Skyrim LE. It will only take a split second to setup the CK for either game.

No more hassle uninstalling and re-installing the CK. Only less than a second instead of several minutes of setup to use the CK for either Enderal FS or Skyrim LE, although only your first setup may take some time.