DEFINE_GUID(IID_IPersistFreeThreadedObject,0xc7264bf0, 0xedb6, 0x11d1, 0x85, 0x46, 0x00, 0x60, 0x08, 0x05, 0x93, 0x68);
DEFINE_GUID(IID_IPreviewHandler, 0x8895b1c6, 0xb41f, 0x4c1c, 0xa5, 0x62, 0x0d, 0x56, 0x42, 0x50, 0x83, 0x6f);
DEFINE_GUID(IID_IPreviewHandlerFrame, 0xfec87aaf, 0x35f9, 0x447a, 0xad, 0xb7, 0x20, 0x23, 0x44, 0x91, 0x40, 0x1a);
DEFINE_GUID(IID_IPersistFreeThreadedObject,0xc7264bf0, 0xedb6, 0x11d1, 0x85, 0x46, 0x00, 0x60, 0x08, 0x05, 0x93, 0x68);
DEFINE_GUID(IID_IPreviewHandler, 0x8895b1c6, 0xb41f, 0x4c1c, 0xa5, 0x62, 0x0d, 0x56, 0x42, 0x50, 0x83, 0x6f);
DEFINE_GUID(IID_IPreviewHandlerFrame, 0xfec87aaf, 0x35f9, 0x447a, 0xad, 0xb7, 0x20, 0x23, 0x44, 0x91, 0x40, 0x1a);