Installing Enterprise console on Windows 7

I have used a local install of Enterprise Console on my XP machine to manage the network, it connects to the management server [Server 2003 R2] it worked pretty well until I changed to windows 7, I tried installing EC 4.5.1 on my Win7 client it installed OK but when I try running it I get this error; what am I doing wrong?

No such interface supported

----- [outer exception] -----
   -- error: 0x80004002 (No such interface supported)
   -- facility: Generic (System)

   at 4
   at 3
   at 2
   at 1
   at void __cdecl GetSubServiceEx2(struct ISM_ManagementServiceApp *,wchar_t *,const struct _GUID &,void **)
   at 1
   at void __cdecl GetSubServiceEx(struct ISMT_CoreServices *,wchar_t *,const struct _GUID &,void **)
   at void __cdecl GetSubService<struct Sophos_Management_Sddma::ISddmaService>(class ATL::CComPtr<struct Sophos_Management_Sddma::ISddmaService> &,const wchar_t *)
   at void __thiscall SubscriptionList::RefreshData(void)
   at __thiscall SubscriptionList::SubscriptionList(void)
   at int __cdecl Run(int,enum bl::ConsoleType::Type)
   at int __stdcall wWinMain(struct HINSTANCE__ *,struct HINSTANCE__ *,wchar_t *,int)