In one of my projects I may be forced to write VxD. Since the rest of the project source code is being converted to FASM I would like to write VxD using FASM as well so I will be able to use single compiler (and possibly linker) for the whole project.

I've search some old FASM topics referring to now forgotten VxD technology and as I understand I can generate VxD using binary option since LE format is not supported. My question is: is there anyone here who have some experience with VxD and recent FASM versions and who is willing to share his experiences with me?

I can always use MASM from Win98 DDK but still... I prefer FASM to do the job unless I will have to generate all VxD related stuff manually, than I will (re)consider MASM since it will be very simple VxD and the overhead may be a lot bigger than the VxD itself.

Don't have any experience, but you can look at generating the necessary LE format structures using custom FASM macros.

Are there any such macros publicly available?

Have you searched this board? (Perhaps you cannot since 'vxd' is a rather short keyword)? What about the web - try a query "vxd site:flatassembler.net", there is something:
http://www.google.com/search?q=vxd+site%3Aflatassembler.net

Yes comrade, thank you but I think I did my homework before asking the question. The closes thing I've found is this thread: http://board.flatassembler.net/topic.php?t=5990&view=previous

but after taking a look at those sources I believe they are incomplete and may not even be compiled. I couldn't even find the VMMCall macro. Anyway fasm is using vmmcall instruction due to VMX support. So the proper macros should be named VxDCall (which is also correct according to MS docs).

I would alread done it with MASM if not two things:

1. I prefer FASM a lot more
2. I would need to setup MASM enviroment and I'm not sure if current versions still support this format.