Missing msword.h

I've got an annoying problem of a missing header file, which I need to use Word through automation. Microsoft 'HOWTO's imply that I should already have the required files, but I get a file not found error when I try to include it. I have searched my drive and dont seem to have it, despite having office xp developer and VS.NET enterprise. I know it's not just the header I need, but I wondered if anyone here knew where the files I need are supposed to be or what they come with. Thanks

I've also tried msword9.h and msword8.h, which are supposed to be for office 2000 and 97 respectively, but I dont have either. Do I need to generate the files from a type library or something like that?

Apparantly VC.NET generates seperate header files for each interface, rather than combining them all into msword.h, found a more up to date article on knowledge base.