I changed the resolution through the tool on Windows XP.
I tested the differences (using recursive ls -alR and save to text files, then using diff command). Nothing has changed in the game's folder. The only spotted differences were for . and .. (nothing interesting).
Thanks for the confirmation. It does change config.ini but it's not located in the game folder, but somewhere in users/<user>/My Documents/My Games/The Saboteur™/SaveGames
And as I said, I suspect what also changes is something in registry. Process Monitor used to work in XP, just some older version. Try to search for regmon. You can still find where to download it.
By the way, sorry for confusion, I meant Process Monitor
above, not Process Explorer.
vanchann: EDIT 2:
It's possible to check for registry changes in wine prefix by using diff command on system.reg
files. Just take a backup before you make changes using the resolution changing tool.
The problem is that in Wine the tool doesn't work. The idea was that someone with Windows can catch what exactly that tool changes, and they try reproducing it in Wine manually.