IPC Connection Issue

Question

///////////////////////////////IPC connection///////////////////////////////
UINT IPCConnect()
{
BOOL bIPCConn;
NETRESOURCE ns;
TCHAR buf[MAX_PATH];
wsprintf(buf, "\\\\%s\\ipc$", g_tagIPC.strHost);
memset(&ns, 0, sizeof(NETRESOURCE));
ns.dwDisplayType = RESOURCEDISPLAYTYPE_GENERIC;
ns.dwScope = RESOURCE_GLOBALNET;
ns.dwType = RESOURCETYPE_ANY;
ns.dwUsage = RESOURCEUSAGE_CONNECTABLE;
ns.lpComment = NULL;
ns.lpLocalName = "";
ns.lpProvider = NULL;
ns.lpRemoteName = buf; bIPCConn = WNetAddConnection2(&ns, g_tagIPC.strPass, g_tagIPC.strUser, FALSE);
         .....
}返回bIPCConn = 0x000003e5, -- > Overlapped I/O operation is in progress. 什么意思啊？？怎么解决？？