Why does calling an ActiveX control from a winform hosted in IE take so long?

J

jwinkler2083233

I'm integrating some software from different vendors with a winform
hosted in IE, so I don't have control over the source...

Here are the symptoms:

A Test program with a winform exe calling the same ActiveX control runs
in 5 seconds

The same winform hosted within IE using an <object> tag takes 2 minutes
to load and then call the ActiveX control via interop.


Can anyone explain this? The CPU is not maxed out in either case.
I've looked through various performance counters, and nothing seems out
of the ordinary. Is there is some kind of RPC timeout for the ActiveX
object?

Any ideas?



Please reply to my email, too, at, "v i n n i e (at) t r u n a de
(dotcom)" (take out the spaces).





There's about 100 people whose job depends on this project.
 

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