Sorry to resurrect, but it doesn't work for me either. I drag the file onto the .batch and the .batch file just disappears, closing and EIG never opens. I do have the "Go Social" version of Sims 3 according to Origin (I bought Sims 3+Supernatural).
I have tried everything to open edit in game... My games are all updated, Default.ini reads: compat.version 24 and world builder version 21 for both Base game and CAW. I've removed all cache files and mods folder. I even tried to open the Sunset Valley Lite world (without any changes) with the EIG.bat ... the Sims opening screen starts for 5 seconds and the box pops up when it stops. The info in the XCPT file that turns up in the Sims folder says: