title: Can not load 64-bit ActiveX Control
body: <p>I build a 64-bit ActiveX Control, and I have registered it successfully. Then I build a MFC project and I want to insert the ActiveX Control into it.</p>
  
  <p>When I open the "Insert ActiveX Control" dialog, I cannot find my ActiveX Control.</p>
  
  <p>If I change the 64-bit Control to 32-bit, the problem is fixed. Why? Does MFC not support 64-bit ActiveX Controls?</p>
  
  <p><a href="https://i.stack.imgur.com/JzFqv.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/JzFqv.jpg" alt="image"></a></p>
  
  <p>The strange thing is that i can load the 64 bits control by ActiveX Control Test Container tool -- "testcon.exe" which is supported by QT5. 
  <a href="https://i.stack.imgur.com/i6noa.jpg" rel="nofollow noreferrer">ActiveX Control Test Container supported by QT5</a></p>
  
  <p><a href="https://i.stack.imgur.com/VEtKJ.jpg" rel="nofollow noreferrer">Control UUID in regedit</a></p>
  
  <p><a href="https://i.stack.imgur.com/Rbm64.jpg" rel="nofollow noreferrer">Control UUID</a></p>