RE: MSDTC Error after applying W2K3 SP2

Thanks, Steven.

I reviewed the article and after setting the permissions (they were already
there under the Advanced settings, but I set them on the main just in case)
and restarting, the problem persists.

There are no event log entries that relate to this error except the one
logged from ASP.NET in the App log, which provides no additional information
(I should have mentioned that in the original post).

On Florin Lazar's recommendation, I have posted the problem over in the
Transactions forums, which he says is monitored by the Transactions team
daily. I hope to make more progress there.

http://forums.microsoft.com/MSDN/ShowPost.aspx?PostID=3171653&SiteID=1

Of course, if you have any additional ideas, I'm all ears and appreciate
your help.


--
-Paul Prewett


"Steven Cheng [MSFT]" wrote:

Hi Paul,

Regarding on the MSDTC access denied error, I've performed some research
and found that such error is likely due to the default system registraction
permission has been changed. The service pack maybe installed maybe the
potential cause. The forum thread you referenced mentioned checking the
access control setting(the SACL string ). Here is anther kb article you can
also have a look which contains some more information about the security
setting and adjustment:

#Systems that have changed the default Access Control List permissions on
the %windir%\registration directory may experience various problems after
you install the Microsoft Security Bulletin MS05-051 for COM+ and MS DTC
http://support.microsoft.com/kb/909444

You can also check the system eventlog to see whether there is any useful
info there. Though I'm not expert on MSDTC /COM+, I can help you check for
some former or exsting issues. Please feel free to post here if you have
any new finding.

Sincerely,

Steven Cheng

Microsoft MSDN Online Support Lead


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--------------------
From: =?Utf-8?B?UGF1bCBQcmV3ZXR0?= <link9@xxxxxxxxxxxxxxxx>
Subject: MSDTC Error after applying W2K3 SP2
Date: Fri, 11 Apr 2008 08:11:02 -0700


Hi -

I have 4 webservers in my webfarm. All Win2k3 web edition. Before
yesterday, none of them were service packed. I have now applied SP2 to
two
of them, and I'm getting a very weird MSDTC error on them now.

The error occurs when I attempt a series of SQL statements wrapped in a
TransactionScope(). It's executing against a different server, so this is
where it's elevated to a distributed transaction.

The error is:
System.UnauthorizedAccessException: Access is denied. (Exception from
HRESULT: 0x80070005 (E_ACCESSDENIED))

And the stack trace ends here:
System.Transactions.Oletx.IDtcProxyShimFactory.ConnectToProxy(.....

I've checked and double checked all my MSDTC settings, and they're set
properly. I have SP2 running elsewhere on different networks using MSDTC
and
the settings are identical.

A DTCPing test shows that everything is OK in both directions.

I'm 100% sure it's not my database server because the other two machines
that aren't SP'd are still executing DT's just fine.

I found this post:
https://forums.microsoft.com/MSDN/ShowPost.aspx?PostID=1974418&SiteID=1

So I ran "sc sdshow mstdc" on the machine where I'm receiving the error
and
got this output:

D:(A;;CCLCSWRPLOCRRC;;;S-1-2-0)(A;;CCLCSWRPWPDTLOCRRC;;;SY)(A;;CCDCLCSWRPWPD
TLOCRSDRCWDWO;;;BA)(A;;CCLCSWLOCRRC;;;AU)(A;;CCLCSWRPWPDTLOCRRC;;;PU)(A;;CCL
CSWRPRC;;;WD)(A;;CCLCSWRPLORC;;;NS)S:(AU;FA;CCDCLCSWRPWPDTLOCRSDRCWDWO;;;WD)

I can't really tell whether that's right or not, though. Can anyone
comment
on that?

I have the same problem on both machines where SP2 has been applied.

Any help would be greatly appreciated.

Thanks,

--
-Paul Prewett



.

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