Your client does not support opening this list with Windows Explorer

Machine configuration:

Operating System: Windows Vista
Explorer Version: IE 8.0
Office Version: Office 2010

Error Message: Your client does not support opening this list with Windows Explorer

Checks to be followed:

* Start / Restart WebClient Service

1. Open the "Run" prompt (key combination Start+R)
2. Type services.msc and press Enter.
3. Locate WebClient service
4. Make sure your service startup mode is set to automatic (right click it, select "Properties", and under "General" tab select "Automatic" from the "Startup Type" dropdown"
5. Start the service or restart it if it’s already running. auto-detection of proxy The way to turn this off is in Internet Explorer:
1. In Tools select Internet options.
2. Select Connections tab
3. click Lan settings button

4. under Automatic configuration clear the Automatically detect settings checkbox.

Sharepoint 2010 - Site Prompts for credentials when opened in explorer view

Came accross an issue wherein the user is working on Sharepoint Server 2010, Ad Domain users . When the user tries to browse the site it works fine without prompting for any credentials . However when they are on a Document Library and change the view to Explorer . They are prompted for login . if the user types the credentials it goes through ( Until they reboot the machine )

OS - Windows 7 , Vista

To resolve this issue ;

First check your Internet explorer settings .

Check whether the site is added to the trusted file location .

check whether the option Automatic logon using the current name and passowrd is selected . and then proceed .

You can download the hot fix from : http://support.microsoft.com/kb/943280

Note This problem does not occur on a Windows XP-based computer

The fix is included in Windows 7. To fix the issue, you only need to create the registry item below

If Basic authentication or Digest authentication is implemented in the network, hotfix 943280 cannot change this behavior. This behavior is by design in Basic authentication mode and in Digest authentication mode.

IIS does not support Windows authentication over the Internet. Therefore, this hotfix applies only to the Intranet scenarios.

You have to restart the computer after you apply this

After you apply this hotfix, you have to create a registry entry. To do this, follow these steps:

1. Click Start, type regedit in the Start Search box, and then press ENTER.
2. Locate and then click the following registry subkey:
   HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\WebClient\Parameters
3. On the Edit menu, point to New, and then click Multi-String Value.
4. Type AuthForwardServerList, and then press ENTER.
5. On the Edit menu, click Modify.
6. In the Value data box, type the URL of the server that hosts the Web share, and then click OK.
   
   Note You can also type a list of URLs in the Value data box. For more information, see the "Sample URL list" section in this article.
7. Exit Registry Editor.

Note You have to restart the WebClient service after you modify the registry.

Your client does not support opening this list with Windows Explorer

we are very much familiar with this error message and know what exactly needs to be done if such issue occurs. But this issue varies if operating system changes from XP to Windows Vista.

 FYI- This is a known issue with windows vista OS and we have a Microsoft KB for this: http://support.microsoft.com/kb/841215

 Before we can go ahead and conclude on to above mentioned KB, make sure to check the following points:

 1)    Web client service should be started

2)    You can also get the error if the URL to the document library is 100 characters long

3)    If you are using Internet Explorer 6 you will get the error. You know it’s time to upgrade

 It would be a good question as What exactly this KB suggest ?

 Please refer the following info:

         Click Start

        type regedit.exe in the Start Search box

        Locate and expand the list and navigate to the following location

• HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\WebClient\Parameter

        Locate the value BasicAuthLevel

• Right click the value and choose Modify.


• In the Value data box, type 2, and then click OK.

        Exit Registry Editor, and then restart the computer.

 Note: We will not do any kind of changes inside the registry so this should be done with the help of Desktop Support Team

 If it’s a Windows Server 2008 OS then please check the following:

        Open up the Windows Server Manager.

        Click Features in the left hand menu

        Click Add Features, in the main window.

        Select the Desktop Experience feature, and then click Next.

        Click Install.

        Click Close when the Add Features wizard is done.

        Choose to reboot when done.

 If it’s a Windows Server 2003 OS then please check the following:

 Download and install the Microsoft Hotfix

Windows Office needs a Web Client update to work properly with WebDAV.