Vista - DataBatcher 1.1 and PowerShell

For anyone who might be interested...

DataBatcher is a batch-processing .NET 2.0 application that I develop in my
spare time. A DataBatcher job consists of a number of steps that are
executed sequentially. Each step is based on a plugin module; a specific
plugin module performs an individual task - e.g. converting image files.

Plugin modules are written in C# or VB.NET - or any other .NET CLS-compliant
language. But PowerShell allows scripting users to script their own steps
using a new, generic "PowerShell" plugin module (written by me in C#). This
module hosts a PS runspace, and injects a number of variables into the
runspace that allows the step's script to interact with DataBatcher's runtime
environment.

DataBatcher is similar to PowerShell in that it too has an object pipeline -
the sequential execution of the steps in a running job is the pipeline, but
the object that is passed down the pipeline is always of the same type - a
'FileSet' object, which represents a set of files and folders to be operated
on. The FileSet output of step N becomes the input of step N+1.

Today I finished the "canonical" script for the PowerShell module in
DataBatcher - i.e. it represents what a step in a job typically does. It
needs tailoring by the scripter before it can be used in anger.

I present this script here (see link below) as a means to shamelessly plug
my app on this newsgroup but also to offer the script for those who might:-
a) learn some techniques from it
b) give me some pointers as to how I can improve it.

Thank you.

Andrew

http://www.databatcher.com/DataBatch...l.Step.ps1.txt