Wow, while I find this feature annoying I would never appear angry or ungrateful with the wine team... About your solution, it works great! Thanks a lot. To anyone interested, if you want to update a wine prefix without seeing the Gecko installing dialogue you can use: Assuming you correctly set WINEPREFIX... Code: $ WINEDLLOVERRIDES="mshtml=" wineboot -u Once done, you can alter the registry to make the dll overriding setting permanent. If you actually want Gecko because you need html rendering you can simply use: Code: $ WINEDLLOVERRIDES="mshtml=" wineboot -u $ winetricks -q gecko