Forum OpenACS Q&A: Response to AOLserver 3.3.1 for Win32 release available in new-file-storage
I just checked the sources for ad13 and e.g. nscache.c isn't "win friendly".
I fixed win portability problems for all the modules needed by acs and you can grab them from CVS at sourceforge.net (project acs-misc). They have no other changes than portability fixes.
But that's only part of the story, I think. You would still need to create a proper project for each module. You can try to grab those from aolserver4-uh module (*.dsp files) but in order to use them straight you would have to follow a protocol of where the source files for the modules are (I think in my scheme all modules should be on the same level as main aolserver source tree). Or you can try to create them by yourself based on how the other modules look like (that's what I did for v4).