From the IE7 web browser, the link to teleport into a secondlife url is broken -- I recently had to reinstall SL, which appearently broke a "protocol" entry somewhere.
Steps: in the IE browser I can navigate to "http://slurl.com/secondlife/REGIONZ/244/103/656
". Two of the hyperlinks are both supposed to launch a helper application in order to execute secondlife.exe. But clicking on the teleport control returns an "application not found".
This is not an in-world problem, but rather something about the browser failing to load the secondlife executable.
On this PC, I am not permitted to run any other browser.