Call DebugBreak on assertion failure

src/assert.cpp

@@ -352,9 +352,14 @@ TORRENT_EXPORT void assert_fail(char const* expr, int line
 
 	// if production asserts are defined, don't abort, just print the error
 #ifndef TORRENT_PRODUCTION_ASSERTS
+#ifdef TORRENT_WINDOWS
+	// SIGINT doesn't trigger a break with msvc
+	DebugBreak();
+#else
 	// send SIGINT to the current process
 	// to break into the debugger
 	raise(SIGINT);
+#endif
 	abort();
 #endif
 }