UsbDk icon indicating copy to clipboard operation
UsbDk copied to clipboard

Published 20 hours ago • verified publisher icon daynix

usbdk windows xp administrator rights

Open cobradevil opened this issue 5 years ago • 7 comments

I have a question regarding usb forwarding using a privileged user on xp. I know xp is old but i have this use case so would like to see if it can work.

The thing is that when i install usbdk the driver gets installed but it does also want to install the drivers for the virtual device when a redirection occurs (2b23:cafe). This step can only be done with a user that is member of the administrator group. After that it works correctly with all usb devices. Is there a way todo this using a script or something without redirecting the device?

Best regards, William

cobradevil avatar May 15 '19 09:05 cobradevil

@cobradevil If I'm not mistaken, there is no requirement for administrator priviliges for redirection. The hidden device is 'raw' one and does not have the function driver. Can you please describe the exact flow and the problem (when it happens and when does not)?

ybendito avatar May 27 '19 10:05 ybendito

My setup is: windows xp using usbdk 1.0.21

The user has limited rights (only user rights). I installed usbdk 1.0.21 as admin on the machine using the msi. I start remote-viewer 2.0-179 to a windows 7 session as the limited user. After plugging in the usb mass storage device on the xp machine a xp popup box comes onscreen telling me that i do not have the proper rights to add the usbdk device to the system. When ignorig the popup the device still works as expected but the popup is very inconvenient.

I also tried using the hiding rule you suggested but the results are the same usbdkcontroller.exe -P 1 -1 -1 -1 0x100 1

Best regards, William van de Velde

cobradevil avatar May 27 '19 10:05 cobradevil

And if i use the hider rule should the device be completely unavailable for the host os? so if i plugin the usb mass storage device with the above rule with no spice session running then the device should be unavailable on xp? Because i tried a few moments ago and then i also get a popup asking for administrator rights to add the usbdk device.

cobradevil avatar May 27 '19 11:05 cobradevil

@cobradevil Hiding with -P causes the matching devices to be always hidden regardless spice session

ybendito avatar May 27 '19 11:05 ybendito

@ybendito so usbdk does create a local device even when it should not do it.

As a workaround i now added a registry setting suppressing the new hardware found wizard so no popup comes to the screen. But i thought the hiding rule would prevent that window from popping up.

The registry value to set to disable the hardware wizard UI mentioned in the article http://support.microsoft.com/default.aspx/kb/938596

is:

Key: HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Windows\DeviceInstall\Settings

Value: SuppressNewHWUI

Data: 1 (REG_DWORD)

cobradevil avatar May 27 '19 12:05 cobradevil

@cobradevil UsbDk does not create the device, it is already created by the system. When the device is hidden or redirected, the UsbDk changes its attribute to be 'raw', so the device does not require driver. It also sets flag 'SilentInstall' for the device, so the OS should not raise any popups for it. Probably, XP ignores it. AFAIR, such problem does not exist in Win7 and up

ybendito avatar May 27 '19 12:05 ybendito

@ybendito

I will test the registry setting. Maybe there could be a line in the readme which addresses this issue?

Best regards, William van de Velde

cobradevil avatar May 27 '19 12:05 cobradevil