These instructions apply for Vista Enterprise Edition.
    - 
        Install ASP.NET
        
      
 
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        In Windows Control Panel, open Programs and Features.
      
 
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        Click Turn Windows features on or off.
      
 
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        In the Windows Features dialog box, select the check box next to ASP.NET.
      
 
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        Click OK.
      
 
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        Complete the installation.