[Wine] Changing the location of Wine's My Documents?

[Ezekiel000]

Is there anyway to change the location of wine's My Documents folder for a single program or as an option when launching a program?

As Myst 4 puts it's save game folder in My Documents which ends up in my home folder and I want it in the games folder. But if I change the setting in winecfg it is changed for all my wine programs.