Re: XP Pro installs Multiple Copies of USB scanner
From: Cari \(MS-MVP\) (Newsgroups1_at_coribright.com)
Date: 02/25/04
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Date: Wed, 25 Feb 2004 11:32:48 -0800
There's a valid reason Windows does this.
Some USB devices have a unique ID built into them so that when Windows
queries them, the unique ID is returned and Windows knows it is the same
device, but you've just connected it to another USB port.
Most USB devices do not have this ID, so when Windows queries it, it does
not know it's the same device, it then presumes you have a second instance
of the same device and will require reinstallation.
Some people do indeed have two instances of the same USB device (usually
printers) and a second installation is necessary so that both of them can
actually work at the same time. For instance if you were printing out 100
copies of the same document, you can send 50 copies to the first printer,
and then 50 copies to the second..... it would then finish the print job
twice as fast.
However most of us only have one instance of a device and it is a bit
annoying!
Cari
www.coribright.com
"Rich" <anonymous@discussions.microsoft.com> wrote in message
news:69D9FC19-D3EC-4A7C-843E-63409ED8241A@microsoft.com...
> Is there a way of preventing Windows XP Pro from automatically installing
> USB Scanner if it's already been installed, but moved from one usb slot to
> another? Seems to be the same with other usb devices too.
>
> Thanks
>
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