URL That Contains User Id?

I'm creating a forms section on our intranet, I want to be able to link direct to specific forms so that it opens immediately. Currently all our forms are MS Word templates that you access by opening MS Word and navigating to the template that is stored on the c drive which staff cannot access directly from their pc's as it is 'locked down'.Now... I can create a url that opens the form directly (i.e. without needing to open Word and navigate to the form template) however that url contains a userid e.g. c://programfiles/word/my-userid/leave-form.doc I obvious cannot use such a url on our intranet to link directly to a form because only I would be able to open the form as it is my userid!