IIS & WSUS

Internet Information Service - Installation

Please start the Server Manager to open the Add Roles and Features Wizard. Confirm the Welcome screen, select the server and then enable the "Web Server (IIS)" and "Windows Server Update Services" roles, which will also activate the role suggested by the Server Manager.

Activate the following features:

• .NET Framework 3.5 Features (automatically activates the subfunction ".Net Framework 3.5 …")
  • HTTP Activation
• .NET Framework 4.5 Features
  • ASP.NET 4.5
• Background Intelligent Transfer Service (BITS) (again, the roles suggested by the Server Manager are also activated).
• Remote Differential Compression

Click "Next" twice and then select the IIS Server role services. The following list of services is installed (services highlighted in orange are not activated by default if you perform a standard Server 2012 R2 installation):

• Common HTTP Features
  Static Content
  Default Document
  Directory Browsing
  HTTP Errors
  HTTP Redirection
• Health and Diagnostics
  HTTP logging
  Logging tools
  Request Monitor
  Tracing
• Performance
  Static Content Compression
• Security
  Windows Authentication
  Request Filtering
• Application Development
  ASP.NET 3.5 / 4.5
  .NET Extensibility 3.5 / 4.5
  ASP
  ISAPI Extensions
  ISAPI Filters

• Management Tools
  IIS Management Console
  IIS Management Scripts and Tools
  IIS 6 Management Compatibilty
  IIS 6 Metabase Compatibility
  IIS 6 WMI Compatibility
  IIS 6 Scripting Tools
  IIS 6 Management Console

Internet Information Service - Configuration

We therefore recommend that you install WSUS and EM on separate servers, due to the use of the "DynamicCompression" module, which is activated globally on IIS through WSUS server installation. The following command can be used to determine whether dynamic compression has been enabled.

%windir%\system32\inetsrv\appcmd.exe list config -section:system.webServer/httpCompression

After entering the command, the status is displayed in the following output line:

doDynamicCompression="true" dll="C:\Windows\system32\inetsrv\suscomp.dll" stat

In case you want to run the components on the same server, you can disable dynamic compression as follows. No restart is required!

%windir%\system32\inetsrv\appcmd.exe set config -section:system.webServer/httpCompression /-[name='xpress']

To enable compression again, please use the following command:

%windir%\system32\inetsrv\appcmd.exe set config -section:system.webServer/httpCompression /+[name='xpress',doStaticCompression='false',dll='%windir%\system32\inetsrv\suscomp.dll']