s/mime on client did not work.
Reviewing the MS KB now...
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Question
Class not registered error in IE8 with OWA
Windows XP Home SP3
IE 8
I get the following error when trying to [Reply] to or create [New Message]s, as examples. We have others running IE8, but do not have these problems. Any suggestions?
Webpage error details
User Agent: Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 5.1; Trident/4.0; GTB6; .NET CLR 1.1.4322)
Timestamp: Mon, 14 Sep 2009 22:46:45 UTC
Message: Class not registered
Line: 155
Char: 2
Code: 0
URI: https://"servername"/exchw
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Answers
I think the client had a corrupt install of IE8. While Help > About said IE8, the actual version number indicated IE 7.x. I used this uninstall method on the client:
http://support.microsoft.c
After running the command in the "Alternative steps for Windows XP or for Windows Server 2003" which was: %windir%\ie8\spuninst\spun
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by: p_nutsPosted on 2009-09-14 at 16:00:11ID: 25330068
on the options part in owa download the latest s/mime
if that still doesn't work .
http://support.microsoft.c
your exchange might need a patch