When we plug in the USB game pad, it installs the device driver and starts to show up in the device manager. Can we somehow extract the driver from the device and install it such that it shows in device manager all the time irrespective of whether device is plugged in or not?
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You don't have to "extract" the driver: it is installed. I change to title of your question from "extract" to "show unused"...– climenoleCommented Oct 7, 2012 at 15:44
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1 Answer
The driver is still there (installed) but "ghosted"...
1) Add this environment variable: devmgr_show_nonpresent_devices with the value of 1
2) Launch devmgmt.msc and choose the option to show hidden drivers
In this example, the driver for the unplugged digital camera appear in the list...
Done.
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Thanks a lot climenole. But there is one more thing i would like to know. Does showing ghosted drivers mean that system would behave exactly the same way as when device was connected. For example, if I have a application which works according to the number of usb devices connected. Will this application see the device as connected when its corresponding ghost driver is shown. If not,then how is it possible to make my application believe that a usb device is connected when it is not? Awaiting your reply. Thanks– parvezCommented Oct 16, 2012 at 18:08