Response to WM_GETOBJECT or getting control's properties is too slow on Vista and Windows 7

Hi,

I am a QA engineer and I got to automate a plug-in of our product
which, of course, is embedded into a web page and could be used in
both IE and FF. For this I use Microsoft UI Automation (http://
msdn.microsoft.com/en-us/library/ms753388.aspx) framework which is
working fine in both browsers on Windows XP. However, the problem is
that the same version of FireFox on Vista and Windows 7 behaves a
little bit differently at least I suspect this. What I have been able
to figure out so far is that when the framework tries to map the
structure of the tested application (component) it sends WM_GETOBJET
message(s) and uses the returned pointer to get information about the
controls of the application (component). The problem is that the
tested application`s (component) answer to the message or later
getting the properties is extremely slow and makes it impossible to
use. The situation is the same when a web page`s structure is being
mapped.

Environment in which I tried to automate my application:
-Vista 32 Enterprise SP1 Eng and Windows 7 RC
-.NET 3.5 SP1
- FireFox 3.5.1 and the latest build from here:
http://ftp.mozilla.org/pub/mozilla.org/firefox/nightly/latest-trunk/

Has anybody ever come across this slowness of Firefox accessibility?

Thank you in advance!

Regards,

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