Follow the steps outlined in this TechNet document:

http://technet.microsoft.com/en-us/library/cc431377.aspx

I created some documentation recently based upon the TechNet article. I just wanted to add a few screenshots to the instructions to make it a bit easier to follow.

Remote Differential Compression for site server and branch distribution point computers

Site servers and branch distribution points require Remote Differential Compression (RDC) to generate package signatures and perform signature comparison. By default, RDC is not installed on Windows Server 2008 or Windows Server 2008 R2 and must be enabled manually.

Use the following procedure to enable Remote Differential Compression for Windows Server 2008 and Windows Server 2008 R2.

  1. On the Windows Server 2008 or Windows Server 2008 R2 computer, navigate to Start / All Programs / Administrative Tools / Server Managerto start Server Manager. In Server Manager, select the Features node and click Add Features to start the Add Features Wizard.
  2. On the Select Features page, select Remote Differential Compression, and then click Next.

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  1. Complete the rest of the wizard.
  2. Close Server Manager.

Install Internet Information Services (IIS) on Windows Server 2008 and Windows Server 2008 R2 Computers

Use the following procedure that applies to Windows Server 2008 and Windows Server 2008 R2:

  1. On the Windows Server computer, navigate to Start / All Programs / Administrative Tools / Server Manager to start Server Manager. In Server Manager, select the Features node, and then click Add Features to start the Add Features Wizard.
  2. On the Select Features page of the Add Features Wizard:
    • For Windows Server 2008, select the BITS Server Extensions check box. For Windows Server 2008 R2, select the Background Intelligent Transfer Services (BITS) check box. When prompted, click Add Required Role Services to add the dependent components, including the Web Server (IIS) role.

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    • Select the Remote Differential Compression check box, and then click Next.
  1. On the Web Server (IIS) page of the Add Features Wizard, click Next.
  2. On the Select Role Services page of the Add Features Wizard:
    • Windows Server 2008 R2 only: For Common HTTP Features, select the WebDAV Publishing check box.

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    • For Application Development, select the ASP.NET check box and, when prompted, click Add Required Role Services to add the dependent components.

clip_image007Note

The ASP check box must also be selected if the site system will be configured as a reporting point.

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    • For Security, select the Windows Authentication check box.

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    • In the Management Tools node, for IIS 6 Management Compatibility, ensure that both the IIS 6 Metabase Compatibility and IIS 6 WMI Compatibility check boxes are selected, and then click Next.

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  1. On the Confirmation page, click Install, and then complete the rest of the wizard.
  2. Click Close to exit the Add Features Wizard, and then close Server Manager.

Enable WebDAV and create an Authoring Rule

Use the following procedure to enable WebDAV and create an Authoring Rule for Windows Server 2008 and Windows Server 2008 R2:

  1. Navigate to Start / All Programs / Administrative Tools / Internet Information Services (IIS) Manager to start Internet Information Services 7 Application Server Manager.
  2. In the Connections pane, expand the Sites node, and then click Default Web Site if you are using the default Web site for the site system or SMSWEB if you are using a custom Web site for the site system.
  3. In the Features View, double-click WebDAV Authoring Rules.
  4. With the WebDAV Authoring Rules page displayed, in the Actions pane, click Enable WebDAV.

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  1. In the Actions pane, click Add Authoring Rule.

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  1. In the Add Authoring Rule dialog box, for Allow access to, select All content.
  2. For Allow access to this content to, select All users.
  3. For Permissions, select Read, and then click OK.

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Use the following procedure to change the property behavior of WebDAV on Windows Server 2008 and Windows Server 2008 R2:

  1. In the WebDAV Authoring Rules page, in the Actions pane, click WebDAV Settings.

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  1. In the WebDAV Settings page, for Property Behavior, set Allow anonymous property queries to True.
  2. Set Allow Custom Properties to False.
  3. Set Allow property queries with infinite depth to True.
  4. For a distribution point that is enabled for Allow clients to transfer content from this distribution point using BITS, HTTP, and HTTPS, forWebDAV Behavior, set Allow hidden files to be listed to True.

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  1. In the Action pane, click Apply.
  2. Close Internet Information Services (IIS) Manager.

Configure the requestFiltering section on distribution points

The following information applies when you use distribution points that are enabled for Allow clients to transfer content from this distribution point using BITS, HTTP, and HTTPS.

If package source files contain extensions that, by default, are blocked in IIS, you must configure the requestFiltering section on the applicationHost.config file on a distribution points that is enabled for Allow clients to transfer content from this distribution point using BITS, HTTP, and HTTPS.

clip_image018Important

When you enable WebDAV and modify the requestFiltering section of the applicationHost.config file for the Web site, this increases the attack surface of the computer. Enable WebDAV only when required for management points and distribution points that are enabled for Allow clients to transfer content from this distribution point using BITS, HTTP, and HTTPS. If you enable WebDAV on the default Web site, it is enabled for all applications that use the default Web site. If you modify the requestFiltering section, it is modified for all Web sites on that server. The security best practice is to run Configuration Manager 2007 on a dedicated Web server. If you must run other applications on the Web server, use a custom Web site for Configuration Manager 2007. For more information, see Best Practices for Securing Site Systems.

Use the following procedure to modify requestFiltering for Windows Server 2008 and Windows Server 2008 R2.

  1. Open the applicationHost.config file located in the %Windir%\System32\Inetsrv\Config\ directory on distribution points that are enabled for Allow clients to transfer content from this distribution point using BITS, HTTP, and HTTPS.
  2. Search for the <requestFiltering> section.

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  1. Determine the file extensions that you will have in the packages on that distribution point. For each file extension that you require, change allowed totrue.
    For example, if your package will contain a file with an .mdb extension, change the line <add fileExtension=".mdb" allowed="false" /> to <add fileExtension=".mdb" allowed="true" />.
    Allow only the file extensions required for your packages.

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  1. Save and close the applicationHost.config file.