-// Doesn't yet compile under BC++ nor with mingw: no wininet.h
-#if !defined(__BORLANDC__) && !defined(__GNUWIN32_OLD__) && !defined(__GNUWIN32__)
+DEFINE_EVENT_TYPE(wxEVT_DIALUP_CONNECTED)
+DEFINE_EVENT_TYPE(wxEVT_DIALUP_DISCONNECTED)
+
+// Doesn't yet compile under VC++ 4, BC++, Watcom C++: no wininet.h
+#if !defined(__BORLANDC__) && \
+ (!defined(__GNUWIN32__) || wxCHECK_W32API_VERSION(0, 5)) && \
+ !defined(__GNUWIN32_OLD__) && \
+ !defined(__WATCOMC__) && \
+ (!defined(__VISUALC__) || (__VISUALC__ >= 1020))