No snap-ins have been registered for Windows PowerShell version 2

I was getting this message in SPPower (http://sppower.codeplex.com/), an application I am building to run powershell commands from WPF.

“No snap-ins have been registered for Windows PowerShell version 2.”

The code was basically this:

using (PowerShell ps = PowerShell.Create()) {
PSSnapInException ex = null
ps.Runspace.RunspaceConfiguration.AddPSSnapIn("Microsoft.SharePoint.PowerShell", out ex);

Doing a search returned this helpful link:

http://blogs.msdn.com/b/pareshj/archive/2010/07/30/error-msg-no-snap-ins-have-been-registered-for-windows-powershell-version-2.aspx

This suggested it was something to do with the different OS architectures.

Then it hit me, i was developing on Vista x86, but needed it to run on Windows 2008 x64. So I went to the visual studio project, and found it was targeted to x86 platform. All i needed to do was change it to "Any CPU", so it works on both the development and target environments