USB - autorun a web address

I currently have 2 files on it:

autorun.inf
start.url

autorun.inf contains 3 lines:

[autorun]  
ShellExecute=start.url
open=start.url

start.u开发者_开发问答rl contains 5 lines:

[InternetShortcut]
URL=http://cnn.com
IDList=
[{000214A0-0000-0000-C000-000000000046}]
Prop3=19,2

Loads ok on Vista, but does not load on XP or Windows7.

Any clue what to change?

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Is the autorun functionality disabled on the XP and Win7 boxes? If so you have to re-enable it.

See this article for how it was, probably, disabled in XP: How to disable the Autorun functionality in Windows

Though I think it could also have been disabled in a group policy.