Visual Studio 2008 / 2010 - unable to start program element not found

Not much on this one that was helpful so I thought I'd put what worked for me.

Cntrl + Alt + Del > Processes >

end all iexplore.exe and WebDev.WebServer.exe processes.

Since devs generally debug with the dev webserver end those processes first and retest. Although iexplore handles stay around for way too long (or a problem with some addin or other).