You can email a link to your ScreenConnect client or support page just as easily as you can with Instant Housecall or any other remote support system, and this is usually much easier than getting a user to go to a specific Web page any other way.
I wonder how many people end up at www.teenviewer.com and if there's any way to monetize that?
It wasn't the link to Screen Connect, it was the prereqs. Either .net or java. I refused to install Java and installing .net was a PITA with a non techie user.