Unable to deploy SolidWorks 2013 - Internal Error

Hi,

I hope somone is able to point out what may be the issue here or if I'm being stupid.

This issue has only just started today, I was able to deploy Solidworks yesterday using the server tool (sldadminoptioneditor.exe).

The tool had been working fine since December 2013 when I last updated SolidWorks.

On trying to run this tool I get the following pop up:

Internal Error: The Installation Manager wants to display a messager to you but can't find the text (ID #507, ?) You may need to reinstall the Installation Manager.

OK'ing that pop up I get another one:

Failed to read c:\SolidWorks Admin\SolidWorks 2013 SP2.0\64bit\AdminDirector.xml

The xml document can be found in the mentioned location and all settings are the same as they were yesterday when it ran fine.

Event viewer doesn't give much away.

The server components run on a Windows Server 2008 R2 Standard (x64) box.

All clients are running Windows 7 (64 bit).

Thanks for any suggestions.

Cheers

SolidworksAdministration