Copy all files for a given MediaShout presentation (along with the presentation) into a single folder. Update the presentation to use the locally referenced files, this way the presentation is actually self-contained.

MediaShoutExport.ps1

# Select-FileDialog Function  #
# Created by Hugo Peeters     #
# http://www.peetersonline.nl #
###############################

# Note: store in your profile for easy use
# Example use:
# $file = Select-FileDialog -Title "Select a file" -Directory "D:\scripts" -Filter "Powershell Scripts|(*.ps1)"

function Select-FileDialog
{
	param([string]$Title,[string]$Directory,[string]$Filter="All Files (*.*)|*.*")
	[System.Reflection.Assembly]::LoadWithPartialName("System.Windows.Forms") | Out-Null
	$objForm = New-Object System.Windows.Forms.OpenFileDialog
	$objForm.InitialDirectory = $Directory
	$objForm.Filter = $Filter
	$objForm.Title = $Title
	$Show = $objForm.ShowDialog()
	If ($Show -eq "OK")
	{
		Return $objForm.FileName
	}
	Else
	{
		Write-Error "Operation cancelled by user."
	}
}

function New-Zip
{
	param([string]$zipfilename)
	set-content $zipfilename ("PK" + [char]5 + [char]6 + ("$([char]0)" * 18))
	(dir $zipfilename).IsReadOnly = $false
}

function Add-Zip
{
	param([string]$zipfilename)

	if(-not (test-path($zipfilename)))
	{
		set-content $zipfilename ("PK" + [char]5 + [char]6 + ("$([char]0)" * 18))
		(dir $zipfilename).IsReadOnly = $false	
	}
	
	$shellApplication = new-object -com shell.application
	$zipPackage = $shellApplication.NameSpace($zipfilename)
	
	foreach($file in $input) 
	{ 
            $zipPackage.CopyHere($file.FullName)
            Start-sleep -milliseconds 500
	}
}

########
# File selector
########
$file_path = Select-FileDialog -Title "Select a MediaShout file" -Directory "C:\Documents and Settings\David Kelch\My Documents\WORSHIP\MediaShout Presentations\"
$file = (ls $file_path);

########
# Generate a clean temp folder
########
$export_folder = "$env:temp\"+$file.BaseName;
if(-not (Test-Path $export_folder) ) { mkdir $export_folder | out-null; }
rm "$export_folder\*" -Force

########
# Copy ssc file to temp
########
"Copying Mediashout file"
cp $file_path $export_folder
$backup_name = ls ($export_folder+"\*.ssc") | select -first 1

########
# Load *.ssc as XML file
# Copy files to temp folder with new names
# Update *.ssc to point at those files.
########
"Copying images"
[xml]$list = cat $backup_name
$slides = $list.MediaShout_Document | gm -MemberType property  | % { if($_.Name -match 'CueN') { $_.Name } } ;
$slides | % { if(($list.MediaShout_Document.$_.Background.Path) -and ($list.MediaShout_Document.$_.Background.Path -ne '') ) { $old_path = $list.MediaShout_Document.$_.Background.Path.Replace('&','&'); if($old_path -ne '') { $old_file = (ls $old_path); $new_name = ($_).Replace("CueN",'slide')+$old_file.extension; $new_path = $export_folder+"\"+$new_name; cp $old_path $new_path; $list.MediaShout_Document.$_.Background.Path = $new_name} } }
$list.Save(($backup_name.FullName))

########
# Zip files to original folder for backup
########
"Zipping files"
$zip_path = $file.DirectoryName+"\"+$file.BaseName+".zip"
new-zip $zip_path
ls $export_folder | add-zip $zip_path

########
# Remove temp on successful zip
########
"Cleaning up"
rm "$export_folder" -Force -Recurse

########
# Open original folder to highlight file
########
$ShellExp = new-object -comObject Shell.Application
$ShellExp.open($zip_path)

Newest version also provides a pop-up for selecting files along with a zip. So the files are all copied and modified in a temp folder and then zipped back into the original folder. The temp files are then deleted and you have a nice little backup package.