Well, really, the "proper" way to run WINE is to set up a "fake_windows " directory and install Windows software into it. It's been a while since I installed WINE, and the config method may have changed since then, but there is a script or a program you run that sets up the fake_windows area. After that, you run the installer (if the program needs one) for whatever you want to run, let it install into what it thinks is c:\Program Files\, but is really ~/.wine/fake_windows/Program Files/, and then run the installed program. This way you don't need a real NTFS partition at all.
There used to be a way to run WINE and have it access an existing Windows partition, registry and all, but I think that method is, at least, deprecated, perhaps even not recommended. It's not really necessary anymore; one of the ideas behind WINE is to not need a real Windows installation at all. So, anyway, go to /usr/share/docs/wine/ and start reading. :) Also "man wine", and check out winesetuptk (that may be outdated now), and wine-config (maybe? can't remember). Install MSN into your fake_windows, and if you need to, copy over your MSN files from your NTFS partition after you install it into fake_windows. Then see if it works. Ok, one other possibility is to copy that CRYPTNET.dll file into the same directory as the EXE file on the NTFS partition. Then maybe WINE could find it. Let us know how it works out.