błąd programu dc++ winxp home

kilka razy dziennie dc++ 0.647 powoduje błąd
tak jak poniżej, czym to może być spowodowane?
mam windows xp home, 1024MB pamięci, wyłączoną wirtualną pamięć
kerio personal firewall, avast

Code: c0000005
Version: 0.674
Major: 5
Minor: 1
Build: 2600
SP: 2
Type: 1
Time: 2006-03-31 23:54:49
TTH: 7WROGS4SQORHFXIOJESYI7LXBCDGEHTG5RNFUBI

ntdll!0x7C918FEA: RtlpWaitForCriticalSection
ntdll!0x7C90104B: RtlEnterCriticalSection
c:\documents\vcprojects\dcplusplus\client\socket.cpp(391): Socket::writeTo
c:\documents\vcprojects\dcplusplus\client\socket.h(152): Socket::writeTo
c:\documents\vcprojects\dcplusplus\client\clientmanager.cpp(124): ClientManager::on
c:\documents\vcprojects\dcplusplus\client\speaker.h(92): Speaker<ClientListener>::fire<ClientListener::X<17>=0x039B7700,Client *=0x039B7744,_STL::basic_string<char=0x0458FE80,_STL::char_traits<char>=0x0458FDF8,_STL::allocator<char> >=0x0458FDFC,int=0x0458FE04,__int64=0x0458FE50,int=0x039B7700,_STL::basic_string<char=0x039B7700,_STL::char_traits<char>=0x0458FE1C,_STL::allocator<char> > >
c:\documents\vcprojects\dcplusplus\client\nmdchub.h(208): NmdcHub::ClientAdapter::on
c:\documents\vcprojects\dcplusplus\client\speaker.h(92): Speaker<NmdcHubListener>::fire<NmdcHubListener::X<24>=0x00000000,NmdcHub *=0x0458FEB8,_STL::basic_string<char=0x0458FE80,_STL::char_traits<char>=0x0458FEB4,_STL::allocator<char> >=0x0458FEA8,int=0x0458FEB0,__int64=0x0458FE50,int=0x02FBF960,_STL::basic_string<char=0x039B77B8,_STL::char_traits<char>=0x039B77D4,_STL::allocator<char> > >
c:\documents\vcprojects\dcplusplus\client\nmdchub.cpp(221): NmdcHub::onLine
c:\documents\vcprojects\dcplusplus\client\nmdchub.h(258): NmdcHub::on
c:\documents\vcprojects\dcplusplus\client\speaker.h(47): Speaker<BufferedSocketListener>::fire<BufferedSocketListener::X<2>=0x7C839900,_STL::basic_string<char=0x0458FEFC,_STL::char_traits<char>=0x039B781C,_STL::allocator<char> > >
c:\documents\vcprojects\dcplusplus\client\bufferedsocket.cpp(312): BufferedSocket::threadRead
c:\documents\vcprojects\dcplusplus\client\bufferedsocket.cpp(428): BufferedSocket::run
c:\documents\vcprojects\dcplusplus\client\thread.h(135): Thread::starter
kernel32!0x7C80B50B: GetModuleFileNameA
Received on Sat Apr 1 08:35:10 2006