I now managed to get my DLL accepted by the wine framework. Now I wanted to know how it's best to proceed.
Currently I have created the directories for w95inf32 with the spec file and a c file. I also added the directory to autoconf.ac and to dlls/Makefile.in so that it gets recogniced by wine. The c file is currently empty and contains only the skeleton of the exported functions from the DLL. Shall I submit this already to wine or is it prefered that I try to add some functionality first? I don't know how long it will take until I can get some working code on this because I need to reverse engineer the code. I haven't found any usefull information about the exported functions so far.