Funny KB article
How Autodisconnect Works in Windows NT and Windows 2000
If you configure the Autodisconnect option to -1 at the command prompt, Autodisconnect is set to the upper value in the registry. This is approximately 8,171 years (not tested), which should be long enough to be the equivalent of turning Autodisconnect off.So what happens in 8,170 years? another crash?