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copied!<p>Here are two alternative powershell functions I came up with. I would prefer the second function which only uses WMI but the Powershell WMI error defect annoyed me enough that I resorted to using the ADSI interface. Both included for reference. </p> <pre><code>function CreateUNCVirtualDirectory( [string]$siteName = $(throw "Must provide a Site Name"), [string]$vDirName = $(throw "Must provide a Virtual Directory Name"), [string]$uncPath = $(throw "Must provide a UNC path"), [string]$uncUserName = $(throw "Must provide a UserName"), [string]$uncPassword = $(throw "Must provide a password") ) { $iisWebSite = Get-WmiObject -Namespace 'root\MicrosoftIISv2' -Class IISWebServerSetting -Filter "ServerComment = '$siteName'" $objIIS = new-object System.DirectoryServices.DirectoryEntry("IIS://localhost/" + $iisWebSite.Name + "/Root") $children = $objIIS.psbase.children $vDir = $children.add($vDirName,$objIIS.psbase.SchemaClassName) $vDir.psbase.CommitChanges() $vDir.Path = $uncPath $vDir.UNCUserName = $uncUserName $vDir.UNCPassword = $uncPassword $vDir.psbase.CommitChanges() } function CreateUNCVirtualDirectory2( [string]$siteName = $(throw "Must provide a Site Name"), [string]$vDirName = $(throw "Must provide a Virtual Directory Name"), [string]$uncPath = $(throw "Must provide a UNC path"), [string]$uncUserName = $(throw "Must provide a UserName"), [string]$uncPassword = $(throw "Must provide a password") ) { $iisWebSite = Get-WmiObject -Namespace 'root\MicrosoftIISv2' -Class IISWebServerSetting -Filter "ServerComment = '$siteName'" $virtualDirSettings = [wmiclass] "root\MicrosoftIISv2:IIsWebVirtualDirSetting" $newVDir = $virtualDirSettings.CreateInstance() $newVDir.Name = ($iisWebSite.Name + '/ROOT/' + $vDirName) $newVDir.Path = $uncPath $newVDir.UNCUserName = $uncUserName $newVDir.UNCPassword = $uncPassword # Call GetType() first so that Put does not fail. # http://blogs.msdn.com/powershell/archive/2008/08/12/some-wmi-instances-can-have-their-first-method-call-fail-and-get-member-not-work-in-powershell-v1.aspx Write-Warning 'Ignore one error message:Exception calling "GetType" with "0" argument(s): "You cannot call a method on a null-valued expression."' $newPool.GetType() $newVDir.Put(); if (!$?) { $newVDir.Put() } } </code></pre>

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