mod-aspdotnet

Asp.net on Apache setup questions

We have an already existing project on IIS and we want to move to Apache (windows) with mod_aspdotnet. What things could not work? If we use 3rd party DLLs? Will office components work fine (export to Excel, Word, etc). If you have any experience on this type of migration, I'd like your inputs! Also, is there another alternative to mod_a...