Removes source control bindings, and optionally backs up the original files

killscc.ps1

param (
    [ValidateScript({$_ | Test-Path -PathType Container})]
    [Parameter(Mandatory=$true)]
    [string] $folder,
    [switch] $backup
)

function killReadOnlyFlag(){
	get-childitem "$folder" -recurse | % {         
		# Test for ReadOnly flag and remove if present 
		if ($_.attributes -band [system.IO.FileAttributes]::ReadOnly) 
		{
			$_.attributes = $_.attributes -bxor [system.IO.FileAttributes]::ReadOnly
			Write-Host "Removing read-only flag " $_.FullName
		}
	}
}

function killScc(){
   gci -path $folder -recurse -force -i *.suo, *.*scc, *.user | Remove-Item -force -verbose
}

function backupItem([string] $itemPath) {    
    $newPath = $itemPath + ".bak"
	Write-Host "backing Up " $newPath
	Copy-Item $itemPath $newPath -force    
}

function removeProjectBindings() {
    gci -path $folder -i *.csproj, *.dbproj -recurse | foreach {

		Write-Host "Modifying " $_.FullName
		[System.Xml.XmlDocument]$proj = get-content $_.FullName
        
        if ($backup) {
            backupItem($_.FullName)
        }

		$ns = New-Object Xml.XmlNamespaceManager($proj.PSBase.NameTable)
		$ns.AddNamespace("msb", "http://schemas.microsoft.com/developer/msbuild/2003")

		"SccProjectName", "SccLocalPath", "SccProvider", "SccAuxPath" | foreach {
		    $node = $proj.SelectSingleNode("//msb:" + $_ , $ns)
		    if ( $node  ) { $x = $node.ParentNode.RemoveChild($node) }
		}

		$_ | Remove-Item -force
		$proj.Save($_.FullName)
	}
}

function removeLegacyDatabaseProjectBinding(){
   gci -path $folder -i *.dbp -recurse | foreach {
        Write-Host "Modifying " $_.FullName
            
        if ($backup) {
            backupItem($_.FullName)
        }

        (get-content $_.FullName) | foreach {
			if(!$_.Contains("SccProjectName") -and !$_.Contains("SccLocalPath") -and !$_.Contains("SccAuxPath") -and !$_.Contains("SccProvider")){
				$_
			}
			
        }  | Set-Content $_.FullName -force
    }
}

function removeSolutionBinding() {
    gci -path $folder -i *.sln -recurse | foreach {
        Write-Host "Modifying " $_.FullName
            
        if ($backup) {
            backupItem($_.FullName)
        }

        $inSccBlock = $false

        (get-content $_.FullName) | foreach {
            if ( $_.Contains("GlobalSection(TeamFoundationVersionControl) = preSolution") ) { $inSccBlock = $true }
            
            if ( !$inSccBlock ){ $_ }
           
            if ( $_.Contains("EndGlobalSection") ) { $inSccBlock = $false }
        }  | Set-Content $_.FullName -force
    }
}


Write-Host "Running..."

[System.Reflection.Assembly]::LoadWithPartialName(“System.Diagnostics”)
$sw = new-object system.diagnostics.stopwatch
$sw.Start()

killReadOnlyFlag
killScc
removeProjectBindings
removeLegacyDatabaseProjectBinding
removeSolutionBinding

$sw.Stop()
Write-Host "Completed in " $sw.Elapsed

This variation adds the ability to remove the read-only flags that TFS puts on all project files as well as handle some older database project types.