From Circle of Eight forum:
http://www.co8.org/forum/showthread.php?t=11578
"This is indeed an interesting find from our fellow member. It's also interesting that in twelve years it is the first time someone experimented in this unusual way (installing a Polish patch on top of an English game) and came up with the least expected results.
The existence of an accidental leak of this tool was known to us for some time, but unfortunately, we were unable to release it publicly before. We had an opportunity to obtain a copy of WorldEd before from a limited collector's edition Polish release of the game that shipped on two CDs. For the reasons of: a) it being proprietary software [that we are not allowed to freely share]; b) being a possible oversight affecting only a particular limited game release that was, in essence, an internal NDA violation within the game release team; c) us not knowing the extent of this oversight and the possible legal implications for us if we released the tool openly,we were unfortunately unable to release the tool here and share it publicly on the Circle of Eight website.
Now, however, that it was found lying openly in a different location, I can say I am glad to see that the program is now public knowledge and, moreover, can be downloaded from a public location on the Internet without anyone having to worry about the shady aspect of potentially releasing it to the public otherwise.As for the tool itself:
a) I can confirm that it definitely works.
b) It's a quirky and crashy and somewhat limited tool compared to what you may expect - while it does indeed open up additional modding possibilties and can speed up the process of map development, do not expect it to work miracles.To get it working, make sure you have the game module .dat file (toee.dat, for memory, though I don't have an active game installation at the moment to test) extracted. Otherwise, you won't be able to load any maps. Also, do not expect the "New Module" button to work properly - that feature is actually left over from Arcanum and does not work correctly for ToEE. Ditto the "Multiplayer" button and many other things. Navigating the map in WorldEd can be a little bit tricky too - the program has no mouse scrolling support and you can only use the numeric keypad to navigate (you have to have Numlock on). The program also likes to crash a lot, especially if you click the wrong things, so make sure you make backups and save often if you work on anything serious in it.
I'm not sure if WorldEd will make a world of difference in ToEE modding due to its quirky and limited nature, but I will only be happy to see new modders come along and use this program to contribute to what ToEE has to offer.
- Agetian"