Windows Mobile 5 and Active Synch

This Could Happen to You!

A customer emailed me with the following issue:

 I'm trying to connect my Dell x51v (Windows Mobile ver 5.0) to MS Exchange 2003 + SP2 through ActiveSync 4.0, but get the
following error in ActiveSync.

Exchange Server
    Your account in Microsoft Exchange Server does not have permission to 
    synchronize your current settings. Contact your Exchange Server 

Support code: 0x85010004

   In  the server Event Log I found event related to ActiveSync.
Source: Server ActiveSync
Category: None
EventID: 3005
User: MYDOMAIN/Username
Computer: ServerName
Description:Unexpected Exchange mailbox Server error: Server: [servername.MYDOMAIN.lan] User: [] HTTP status code: [409]. Verify that the Exchange mailbox Server is working correctly.

For more information, see Help and Support Center at

EventID: 3005

Filename: massync.dll

version: 6.5.7638.1

Product: Microsoft Exchange

Product version: 6.5.7638.1

Type: Error


When I got the email I did not know the resolution, now I do and you should too:



1. Start Internet Information Services (IIS) Manager.

2. Locate the Exchange virtual directory. The default location is the following: Web Sites\Default Web Site\Exchange

3. Right-click the Exchange virtual directory, click All Tasks, and then click Save Configuration to a File.

4. In the File name box, type a name. For example, type ExchangeVDir. Click OK.

5. Right-click the root of this Web site. Typically, this is Default Web Site.

6. Click New, and then click Virtual Directory (from file).

7. In the Import Configuration dialog box, click Browse, locate the file that you

8. Created in step 4, click Open, and then click Read File.

9. Under Select a configuration to import , click Exchange, and then click OK.

10. A dialog box will appear that states that the "virtual directory already exists."

11. In the Alias box, type a name for the new virtual directory that you want Exchange ActiveSync and Outlook Mobile Access to use. For example, type ExchDAV.

12. Click OK.

13. Right-click the new virtual directory. In this example, click ExchDAV. Click Properties. Click the Directory Security tab. Under Authentication and access control, click Edit. Make sure that only the following authentication methods are enabled, and then click OK:

a. Integrated Windows authentication

b. Basic authentication

14. Under IP address and domain name restrictions, click Edit. Click Denied access, click Add, click Single computer, type the IP address of the server that you are configuring, and then click OK.

15. Under Secure communications, click Edit. Make sure that Require secure channel (SSL) is not enabled, and then click OK.

16. Click OK, and then close the IIS Manager.

17. Click Start, click Run, type regedit, and then click OK.

18. Locate the following registry subkey: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\MasSync\Parameters

19. Right-click Parameters, click to New, and then click String Value.

20. Type ExchangeVDir, and then press ENTER. Right-click ExchangeVDir, and then click Modify.

NoteExchangeVDir is case-sensitive. If you do not type ExchangeVDir exactly as it appears in this article, ActiveSync does not find the key when it locates the ExchDAV folder.

21. In the Value data box, type the name of the new virtual directory that you created preceded by a forward slash (/). For example, type /ExchDAV.

22. Click OK.

23. Quit Registry Editor.

24. Restart the IIS Admin service. To do this, follow these steps:

a. Click Start, click Run, type services.msc, and then click OK.

b. In the list of services, right-click IIS Admin service, and then click Restart


Thanks, Dmytro!


Comments (6)
  1. Kim Lopez says:

    This sounds like a very cool and helpful thing. People would get a lot of information.

  2. Thanks, Kim, that is my goal. If you’re interested in other cool and useful Exchange info check out the Exchange category on my blog over on the right and the Exchange Team Blog, You Had Me at EHLO,

  3. kstarling says:

    Thanks for this artical i am having the same problem. Could you explain what is happening here. Looks like you have the resolution but i don’t understand why this is happening?? I am also concerned that you are turning off ssl??

  4. Brian Schlottmann says:

    These symptoms are similar to mine execpt the activesync error code I get is 0x80830003. But the associate error code in the logs is the same [409] error. I’ve found other users online with the same errors but with no resolution yet.

    The strange thing is that I have two other mobile devices (tmobile mda & sda) that work like a dream with the server, but the cingular (8125) device fails with said errors. It seems to authenticate then when activesync on the device says, looking for changes… it fails.

    A favorable response would be highly appreciated… I can also forward it on to others with the same problem.

    Brian Schlottmann

Comments are closed.

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