Re: How to eject removable devices programmatically?

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Pavel A. wrote:
"Uwe Sieber" wrote:
....
It uses CM_Query_And_Remove_SubTree to remove the USB device.
But this function requires admin previleges while
CM_Request_Device_Eject works without. No idea why.

Maybe this is controlled by a Local/Group policy "Devices: allow format and eject removable media"

Just tried it: Doesn't help. It also doesn't help for
IOCTL_STORAGE_EJECT_MEDIA because there seems to be
no way to get the required handle to the storage volume.

Uwe

.

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