How to register and un-register ActiveX
This tip describes how ActiveX controls can be registered and unregistered
directly from Visual Basic. Every ActiveX control contains two functions that can be
called that will instruct the OCX to either register or un-register itself with the
system. These functions are DLLRegisterServer and DLLUnregisterServer. The
following tip demonstrates how to register and un-register the Microsoft Common Controls
Copy the following code into the declarations section of your projects.
Declare Function RegComCtl32 Lib
Alias "DllRegisterServer" () As Long
Function UnRegComCtl32 Lib "ComCtl32.OCX" _
Alias "DllUnregisterServer" () As Long
Const ERROR_SUCCESS = &H0
To register the Microsoft Common Controls, use this code:
RegComCtl32 = ERROR_SUCCESS Then
MsgBox "Registration Successful"
MsgBox "Registration Unsuccessful"
If UnRegComCtl32 = ERROR_SUCCESS Then
MsgBox "UnRegistration Successful"
MsgBox "UnRegistration Unsuccessful"
DLL function call may take up to 5 seconds.