OCS Plugin XML is invalid

Hi, I have installed the security plugin on my OCS server and agent but when I do an inventory it shows the following error:

WARNING *** EXECUTABLE PLUGIN => Executable plugin <C:\Program Files (x86)\OCS Inventory Agent\plugins\security.vbs> output is not UTF-8 encoded or an XML document, trying to UTF-8 encode

ERROR *** EXECUTABLE PLUGIN => Failed to UTF-8 encode executable plugin <C:\Program Files (x86)\OCS Inventory Agent\plugins\security.vbs> output

I have checked the xml created by the vbs script and can see that it isn`t a valid xml because it creates more than 1 root node.
Any ideas how to fix this. Thanks