IHTMLDocument2 - click button inside iframe

Question

I\'m creating a DCOM extension for some really old application. Main application has IE control inside of it.

Using C# I was able to get handler for that IE Control as b

Answer 1

Try accessing the frames collection using single threaded architecture (STA Thread). That worked for me, in a functional nunit test that confirmed frame contents. I had the same cast error until I switched thread models.