Thanks Justin, but that link does not provide the steps, in just speaks in general terms about working with certificates. I've actually seen a document some time ago where it provided the step by step instructions of creating a Certificate using Certmgr, and then configuring the Digital Signatures feature. If you could help locate that document, it would be very helpful.

That specific page, no, but this is one of the pages directly under that TOC listing. https://msdn.microsoft.com/en-us/library/ms733813(v=vs.110).aspx. I'm not sure exactly which other paper you're referring to I'm afraid, traditionally we refer people here.