George,

While I agree for the most part, there are cases of errors in the SDK. See thread #542368 for one case. As I discovered, the relevant registry keys did not exist on any Win9X boxes that were available to me at the time.

A great resource, but not perfect. Just my 2 cents.

>The Platform SDK (which is part of the MDSN Library also) documents what functions are available on what Platforms. Naturally, Win2K/NT has many functions that aren't available on other Win32 platforms. The converse, however, is not true.
>
>By and large I've found that the information provided by the Platform SDK is accurate and consistent across the various flavors of Win32, and is, therefore, your best source of information. In this case, the following appears in the description regarding the volume serial number:
>
>"Windows 95/98/Me: If the queried volume is a network drive, the serial number will not be returned."