You can use TDW's generic patcher if you have the DVD version of the game.
With the Steam version of the game it will not work!
You can installl the patcher manually and it will change the necessary codes in the sh5.exe file.
I would recommend to install the patcher as a mod, Trevally did a tutorial on how to:
http://www.subsim.com/radioroom/showthread.php?t=197960
Do a backup of the files as described in post 2 of that thread (also available as a download)
This method has the advantage that if a new version is available you can delete the old one in one single go and make a new one for JSGME
(this saves you undoing all changes first manually before enabling all new changes manually again)