Can't replace my ActiveX DLL when program is running

[Tomexx]

Hi,
Wanted to use an ActiveX dll in my program so I created following test projects:

• DLL_test.exe
• ActiveX_DLL.dll

(I did set binary compability to the DLL).

Run the compiled DLL_test.exe and click a button and sure enough I get the message box

The problem is that once the button was clicked at least once, I can't replace the DLL with a new one. Looks like my EXE program is not releasing the DLL once it is called. After closing my EXE and even restarting I can replace the DLL no problem (until I use the function by clicking the button again).

' Function in my ActiveX_DLL.dll
Public Function About()
    MsgBox "My DLL v2.5"
End Function


' My DLL_Test.exe program
Private Sub cmdActiveXDLL_Click()
  Dim myDLL As Object
  Set myDLL = CreateObject("ActiveX_DLL.class1")
  
  myDLL.About
  
  Set myDLL = Nothing
End Sub

I thought the the code below should be releasing the DLL, but it's not.

Set myDLL = Nothing

Any ideas?