>It doesn't look like a "signal" is not a kernel primitive on NT, it's a
>feature of the CRT implemented in userspace with lower-level OS
primitives.
That is correct. Signals in the Unix sense of the word do not exist in
win32. A subset of them was emulated by the C runtime for compatibility
with dos applications. All real win32 process messaging goes through
messages.
Exception handling, however, is a kernel primitive, and handles some
cases like int/0 that normally would be handled by signals. Microsoft
hacked the C language to include exception support for this reason.
Merlin
