From Jason Row:
Microsoft Manual of Style version 3.0
We have this at the office and use it for our technical writing. I didn't know that it was available as a download from Microsoft. Now I won't have to lug a book home when I need it.
I didn't know this was available as a download, either. I have the 2nd Edition of the MMOS sitting on my shelf and reference it often in my writing. Now I can get a copy of the newer version. I highly recommend this book if you do any technical writing relating to Microsoft products. Thanks for the link, Jason!