ActiveSync Configuration Error

[MASolutions]

Folks,

For some strange reason the ActiveSync and AutoDiscover directories are not working correctly. It was working fine until recently. Below is a copy of the error. I have searched all over MS Technet's sites and tried updating the .NET package to 4.0, uninstalling and re-installing CAS roles. OWA works perfectly fine.

Any exchange gurus have tips or suggestions???

Description: An error occurred during the processing of a configuration file required to service this request. Please review the specific error details below and modify your configuration file appropriately.

Parser Error Message: Could not load file or assembly 'Microsoft.Exchange.Clients.Owa' or one of its dependencies. The system cannot find the file specified. (C:\Program Files\Microsoft\Exchange Server\ClientAccess\Owa\web.config line 64)

Source Error:

Line 62: <!-- OWA HTTP Modules -->
Line 63: <httpModules>
Line 64: <add type="Microsoft.Exchange.Clients.Owa.Core.OwaModule, Microsoft.Exchange.Clients.Owa"
Line 65: name="OwaModule"/>
Line 66: </httpModules>

 

[TechyMcSe2k]

Check this post and scroll to the bottom.

http://social.technet.microsoft.com.../thread/ce0bf280-3501-4904-a979-6874c3e6f532/

The guy that post about PSS solving his issue. also, others are stating that installing.net 3.5 sp1 fixed it. Also, others are saying install the latest rollup pack, but I do not believe that is your issue. I like the PSS solution of your Website/autodiscover/activesync may be looking at the wrong directory.

What version of Exchange are you running and what service pack level?

http://www.samtechconsulting.com

_______________________________________
Great knowledge can be obtained by mastering the Google algorithm.

 

[MASolutions]

Hello,

Yeah - I saw that post some time ago and verified the directories. Very strange error.

Exchange 2007 SP3

Got any more tips?

 

[TechyMcSe2k]

You said it worked until recently....what changed? Where there updates installed? A third party application? Anti-Virus software that may have blocked some of the assembly files?

Is the following file present?
C:\Program Files\Microsoft\Exchange Server\ClientAccess\Owa\Bin
Microsoft.Exchange.Clients.Owa.dll

http://www.samtechconsulting.com

_______________________________________
Great knowledge can be obtained by mastering the Google algorithm.

 

[MASolutions]

I believe after updating the IIS to 7 is when these problems began to occur. I did not update anything else at the time, and AVG Business for Exchange has always been running.

And yes, that file does exist within that directory to stated. 1.93MB file.

 

[Zelandakh]

Check the auth on the owa, activesync and ews sub directories.

Usually someone has turned off anon or turned on ssl on the default web site.

 

[MASolutions]

Within IIS Mgr?

 

[MASolutions]

Ah ha! I copied the Microsoft.Exchange.Clients.Owa.dll file into the Microsoft\Exchange Server\ClientAccess\sync\Bin directory, restarted IIS and BOOM it worked!

I was looking in the ClientAccess folder and NOT the sync folder previously... anyway, thanks guru's for your support and suggestions!