asp.net unique link generator
<p>In an email, I want my users to be able to click a link to confirm an interview schedule.  How do I dynamically create these urls? </p>

<p>I am thinking of using a query string and I don't want them to have to login every time. So ideally, I'd like this query string to contain credentials, and a date and time.  Of course, I'd like this to be encrypted in some simple way. </p>

<p>example: invitation.aspx?qs=24lkl254524j2re2wtl5y6.</p>

<p>Any suggestions? </p>
