Automatic TFS Checkout for PowerShell ISE

Microsoft.PowerShellISE_profile.ps1

if ($global:ProfileEventSubscribers) {
    $global:ProfileEventSubscribers |
        ForEach-Object {
            Unregister-Event -SourceIdentifier $_.Name
        }
}    
$global:ProfileEventSubscribers = @()

$global:IsTfsInstalled = $false
try {
    [Reflection.Assembly]::Load('Microsoft.TeamFoundation.VersionControl.Client, Version=10.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a') | Out-Null
    $global:IsTfsInstalled = $true
} catch {
    Write-Warning 'TFS assembly could not be found. Ensure Team Explorer 2010 is installed.'
}

function global:Set-TfsCheckedOut (
    [string]
    $Path,
    [switch]
    $Force
) {
    Write-Verbose "Set-TfsCheckedOut -Path '$Path' -Force:`$$Force"
    if (-not $Force -and -not (Get-Item -Path $Path).IsReadOnly) { return }

    $WorkstationType = [Microsoft.TeamFoundation.VersionControl.Client.Workstation]
    if (-not $WorkstationType::Current.IsMapped($Path)) { return }
    $WorkspaceInfo = $WorkstationType::Current.GetLocalWorkspaceInfo($Path)
    $Collection = [Microsoft.TeamFoundation.Client.TfsTeamProjectCollectionFactory]::GetTeamProjectCollection($WorkspaceInfo.ServerUri)
    $Collection.EnsureAuthenticated()
    $Workspace = $WorkspaceInfo.GetWorkspace($Collection)
    $Workspace.PendEdit($Path) | Out-Null
}

function global:Register-ISEFileEvent ($ISEFile) {
    if (-not $global:IsTfsInstalled) { return }
    Write-Verbose "Subscribing to ($($ISEFile.DisplayName)).PropertyChanged"

    $global:ProfileEventSubscribers += Register-ObjectEvent `
        -InputObject $ISEFile `
        -EventName PropertyChanged `
        -Action {
            if ($eventArgs.PropertyName -eq 'IsSaved' -and
                -not $sender.IsSaved) {
                Set-TfsCheckedOut -Path $sender.FullPath
            }
        }
}

Write-Verbose 'Subscribing to $psISE.CurrentPowerShellTab.Files.CollectionChanged'
$global:ProfileEventSubscribers += Register-ObjectEvent `
    -InputObject $psISE.CurrentPowerShellTab.Files `
    -EventName CollectionChanged `
    -Action {
        if ($eventArgs.Action -eq 'Add') {
            $eventArgs.NewItems |
                ForEach-Object {
                    Register-ISEFileEvent -ISEFile $_            
                }
        }
    }
    
    
$psISE.CurrentPowerShellTab.Files |
    ForEach-Object {
        Register-ISEFileEvent -ISEFile $_            
    }

How to embed it with my PS ISE?

Oh, I see it's a profile file.