Scott Hanselman's Computer Zen - Programmatically Mapping an IIS Vdir/AppPool to .NET Framework 2.0

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Programmatically Mapping an IIS Vdir/AppPool to .NET Framework 2.0

Posted in ASP.NET.

We needed to create an IIS Application and Virtual Directory programmatically and while we were doing this, ensure that the VDIR would run only under ASP.NET 2.0. We could certainly shell out to ASPNET_REGIIS.exe to do the work, but this would recycle the whole of IIS (basically every AppPool).

Scott Forsyth at ORCSWeb, my very awesome hosting provider, has an article on a simpler way to make this happen. (It's an older article and older code, but it does work on 2.0 with some simple mods)

It's pretty clever actually...he just spins through the scriptmaps and replaces the current ASP.NET version with the one he wants. The end result is that only that AppPool needs to reset, it's faster, and you don't need to shell out. Thanks ScottF!

Posted at 2006-09-25 04:22 PM by Scott
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Monday, September 25, 2006 11:31:04 PM (Pacific Standard Time, UTC-08:00)

Some Powershell script code (taken directly from our own ConfigTool/ConfigWebSetup.ps1):

$root = New-Object System.DirectoryServices.DirectoryEntry("IIS://localhost/W3SVC")
$site = $root.get_Children() |Where-Object { $_.ServerComment -eq $AppSiteName }

$webs = $site.get_Children().Find("ROOT", "IIsWebVirtualDir").get_Children()
$web = $webs |Where-Object { $_.get_Name() -eq $AppName }

# $LocalPath = $web.get_Path().Replace("IIS://localhost/", "")
# &C:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\aspnet_regiis -sn $LocalPath
$newScriptMaps = $web.ScriptMaps |ForEach-Object { $_ -replace "Framework\\v\d{1}\.\d{1}\.\d{1,5}\\", "Framework\v2.0.50727\" }
$web.ScriptMaps = $newScriptMaps
$web.CommitChanges()

Peter W

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