By a extrremely simple test i try to create the following automation
XmlHttpReg Automation "{662901FC-6951-4854-9EB2-D9A2570F2B2E} 5.1:{016FE2EC-B2C8-45F8-B23B-39E53A75396B}:
'Microsoft WinHTTP Services, version 5.1'.IWinHttpRequest";
CREATE(XmlHttpReg,TRUE);
When i run this i get the attached error
0