InterDev debug ASP page and custom ActiveX all

I am working on a project to convert the previous ASP + DLL project to Asp.net. All business logic needs to be changed from the original ASPCode.
So I used the ASP debugging tool InterDev and the VB for debugging DLL.
1. unregister the custom DLL. (So that the system runs the DLL debugged by VB)
2. Start VB, set the corresponding breakpoint, and press F5 to run.
3. Run your aspProgram.
4. Start interdevand run the w3wp.exe process (my environment is IIS 6.0 + Asp.net 2.0)
5. Open "running events" and you will see some asp files. These files are the accessed pages,
If you want to debug a page, you can first visit the page, and then you can see the page in running documents, double-click to open the page,
Set a breakpoint on the page to track and debug the ASP page.