Photoviewer.ps1

Function Set-Default([Array]$Exts, [String]$Value)
{
	ForEach ($Ext in $Exts)
	{
		$Classes = "HKLM:\SOFTWARE\Classes\"
		$Path = Join-Path -Path $Classes -ChildPath $Ext
		Set-ItemProperty -Path $Path -Name "(Default)" -Type String -Force -Value $Value
	}
}

$bmp = @(".bmp", ".dib")
Set-Default -Exts $bmp -Value "PhotoViewer.FileAssoc.Bitmap"

$gif = @(".gif")
Set-Default -Exts $gif -Value "PhotoViewer.FileAssoc.Gif"

$jiff = @(".jiff")
Set-Default -Exts $jpeg -Value "PhotoViewer.FileAssoc.Jfif"

$jpeg = @(".jpe", ".jpeg", ".jpg")
Set-Default -Exts $jpeg -Value "PhotoViewer.FileAssoc.Jpeg"

$png = @(".png")
Set-Default -Exts $png -Value "PhotoViewer.FileAssoc.Png"

$tiff = @(".cr2", ".tif", ".tiff")
Set-Default -Exts $tiff -Value "PhotoViewer.FileAssoc.Tiff"

$wdp = @(".wdp", ".jxr")
Set-Default -Exts $wdp -Value "PhotoViewer.FileAssoc.Wdp"

$all = $bmp + $gif + $jiff + $jpeg + $png + $tiff + $wdp

$s_All = $all -Join "|"

$SystemFileAssociations = "HKLM:\SOFTWARE\Classes\SystemFileAssociations\"
Get-ChildItem -Path $SystemFileAssociations | where {$_.Name -Match $s_All} | ForEach
{
	$Parent = Join-Path -Path $SystemFileAssociations -ChildPath $_.PSChildName
	$Path = Join-Path -Path $Parent -ChildPath "Shell\3D Edit"
	if (Test-Path -Path $Path)
	{
		Remove-Item -Recurse -Path $Path
	}
}