I have been two days following a nasty bug, that it even made me think that could be a virus. Now I know that it is a Harbour bug and I have also reported it to the Harbour devel list:
https://groups.google.com/forum/?fromgroups#!topic/harbour-devel/YPx3LKf-RyIBut to me, the real important thing is that on a circunstance where a nasty GPF was ocurring (the GPF happened in a Windows DLL, apparently not related at all with the EXE), the Microsoft Visual C debugger has been the only tool that helped me on such important task. Thats why I think that some of you may be interested in knowing how to use such so usefull tool
Thats why I think this is really important to be commented here