Rory McGuire Wrote: > > I think perhaps you mis-understood, it is mostly not stupidity that causes > people to use > undocumented "features" of an API but rather, it is people being overly > "clever".
Or sometimes simply desperation. There are some classes of apps that require the use of undocumented API calls to operate on Windows--I believe disk defragmenters are one example. Microsoft rightly didn't document these calls because it wasn't prepared to support them long-term, but in doing so they also prevented users from doing necessary work and effectively forced them into using API calls that might change unexpectedly. I think these users accept this problem and do the necessary verification and updating when new OS revisions are released however.
