Method of converting an ocx file into an DLL file referenced by an C program

1. Open an VS2008 or VS2010 command prompt (for this example, VS2008)

Copy ocx file to d:\Program Files\Microsoft Visual Studio 9.0\VC

2. Register the ActiveX control

regsvr32 IB_USBKEY.ocx

3. Compile the OCX file

aximp IB_USBKEY.ocx

Generate two dll files that refer to the Ax prefix in the project

4. Copy the two generated dll files into the project