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Configuring IIS for Silverlight Applications

Microsoft® SilverlightTM is a cross-browser, cross-platform plug-in for delivering the next generation of .NET based media experiences and rich interactive applications for the Web. Silverlight offers a flexible programming model that supports AJAX, VB, C#, Python, and Ruby, and integrates with existing Web applications. Silverlight supports fast, cost-effective delivery of high-quality video to all major browsers running on the Mac OS or Windows.

In most cases, hosters do not need to perform particular deployments to support Silverlight. However, check for the following basic items that could prevent Silverlight from functioning correctly.

MIME Types

In Windows Server 2008 IIS 7.0 

All MIME types needed to support Silverlight are implemented by default in Windows Server 2008 IIS 7.0 and Windows Vista SP1.  Windows Vista RTM customers can add mime types by running “IIS Manager”, clicking on “Mime Types”, then clicking “add” and adding the following mime types:

  • .xap     application/x-silverlight-app
  • .xaml    application/xaml+xml
  • .xbap    application/x-ms-xbap

Alternatively, you can add the following mime types to your %windir%\system32\inetsrv\config\applicationHost.config file in the <staticContent> section.

<mimeMap fileExtension=”.xaml” mimeType=”application/xaml+xml” />
<mimeMap fileExtension=”.xap” mimeType=”application/x-silverlight-app” />
<mimeMap fileExtension=”.xbap” mimeType=”application/x-ms-xbap” />

In Windows Server 2003 IIS 6.0 

To enable IIS 6.0 in Windows Server 2003 or IIS7 in Windows Vista RTM with the appropriate MIME Types, add:

  • .xap     application/x-silverlight-app
  • .xaml    application/xaml+xml
  • .xbap    application/x-ms-xbap

Here is a VB script you could run to enable each of these types:

Const ADS_PROPERTY_UPDATE = 2
'
if WScript.Arguments.Count < 2 then
WScript.Echo "Usage: " + WScript.ScriptName + " extension mimetype"
WScript.Quit
end if
'
'Get the mimemap object.
Set MimeMapObj = GetObject("IIS://LocalHost/MimeMap")
'
'Get the mappings from the MimeMap property.
aMimeMap = MimeMapObj.GetEx("MimeMap")
'
' Add a new mapping.
i = UBound(aMimeMap) + 1
Redim Preserve aMimeMap(i)
Set aMimeMap(i) = CreateObject("MimeMap")
aMimeMap(i).Extension = WScript.Arguments(0)
aMimeMap(i).MimeType = WScript.Arguments(1)
MimeMapObj.PutEx ADS_PROPERTY_UPDATE, "MimeMap", aMimeMap
MimeMapObj.SetInfo
'
WScript.Echo "MimeMap successfully added: "
WScript.Echo "    Extension: " + WScript.Arguments(0)
WScript.Echo "    Type:      " + WScript.Arguments(1)

If you copy and paste the code above into a VB file and save it as ADDMIMETYPE.VBS the syntax to add each type would be:
ADDMIMETYPE.VBS  .xap  application/x-silverlight-app

ADDMIMETYPE.VBS  .xaml application/xaml+xmlADDMIMETYPE.VBS  .xbap application/x-ms-xbap

Using the IIS Manager User Interface in Windows Server 2003 IIS 6.0

1. Go to Start\Administrative Tools and run IIS Manager, see figure below:

2. Right click on the server name and select “Properties”, see figure below:

3. In the Properties Dialog, click on the “MIME Types” button, see figure below:

4. In the “MIME Types” Dialog, click the “New” button, see figure below:

5. In the “MIME Type” Dialog enter one MIME Type at the time:

  • .xap     application/x-silverlight-app
  • .xaml    application/xaml+xml
  • .xbap    application/x-ms-xbap

see figure below:

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About BjTechNews (867 Articles)
An IT guy trying to learn everything about technology and sharing it with you all. I'm a blogger and video blogger who highlights daily news in the tech industry, promoting tips and hacks for fellow techies.

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