Why?!

I have a project and when i try and get it to produce the usual .cab files and setup.exe, it now include mdac_typ.exe.

The only thing i can think of is that i recently downloaded service pack 4 and installed it, and that required me to run some mdac .exe before installing the rest of it. I didnt need it before.

Do i need it? I`m building the project on a 98 system, but the product only has to run on nt (as i got a message about dcom98 too...)

Any ideas?

thanks,
alex.