MSVC Instant Breakpoint|
If you're using a Windows NT based system and you are running your
application under the Visual Studio debugger you can type F12 in your
application at any time to immediately break into the debugger.
There is no way to turn this off, which makes debugging anything bound to
your F12 key a bit difficult, since the application never gets the
Yes, I did find this one out the hard way.
The zip file viewer built into the Developer Toolbox made use
of the zlib library, as well as the zlibdll source additions.