The problem you described before with the missing symbols can be resolved by linking against the mod_perl.lib built when you build mod_perl.so. This can be done by adding in a LIBS attribute to WriteMakefile() in Makefile.PL with a value of ' -L/Path/to/mod_perl_lib -lmod_perl'.
ah, right. thanks randy.
examples of this can be found in Apache::WinBitHack, for example, the format of which should probably go in Apache::Dispatch (as well as just about all Apache:: modules to make sure they are Win32 compliant :)
--Geoff