I think it should be somewhere like C:\Program Files\Steam\steamapps\worldofgoo\WorldOfGoo.exe

If that doesn't find it, try a search on your hard disk for WorldofGoo.exe

Let me know where you find it, so I can update GooTool for other users!

And of course let me know if it even works on the Steam version

-davidc

Thanks, I found it in Program Files\Steam\steamapps\common\world of goo

Cool, let me know if everything works ok, e.g. if you can play new levels fine.