Hi all,

I was working with the Virtual COM example from Philips (AN10420, USB
virtual COM port on LPC214x). During my evaluation, I installed the
Windows driver PLP2KUS.sys. I would like to remove the driver, but
Windows will not cooperate.

I've read the Windows help on driver removal, however it doesn't seem to
work for me. I get the Blue Screen and the PC instantly shuts down. I
mean NOW.

Thoughts?

Regards,

John G.

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You can try to remove them into the Windows safe mode.

Regards
Fabio Filippa


-----Messaggio originale-----
Da: Gerthoffer, John [mailto:j...@respironics.com]
Inviato: mercoled6 febbraio 2008 15.23
A: l...
Oggetto: [lpc2000] Philips Virtual COM driver removal

Hi all,

I was working with the Virtual COM example from Philips (AN10420, USB
virtual COM port on LPC214x). During my evaluation, I installed the
Windows driver PLP2KUS.sys. I would like to remove the driver, but
Windows will not cooperate.

I've read the Windows help on driver removal, however it doesn't seem to
work for me. I get the Blue Screen and the PC instantly shuts down. I
mean NOW.

Thoughts?

Regards,

John G.

========================================================================
CONFIDENTIALITY NOTICE
----------------------
This message, together with any attachments, may be legally privileged
and is confidential information intended only for the use of the
individual or entity to which it is addressed. It is exempt from
disclosure under applicable law including court orders. If you are not
the intended recipient, you are hereby notified that any use,
dissemination, distribution or copy of this message, or any attachment,
is strictly prohibited. If you have received this message in error,
please notify the original sender and delete this message, along with
any attachments, from your computer.









Start a New Thread

To delete the device driver implementation completely, delete these items.
- Device instance on the registry
- INF file
- the body of device driver (SYS file)

Delete the device instance on Device Manager
1) Unplug the LPC214x USB connection from the PC

2) Copy these two lines to a blank text file, and rename the file to
DevManager.bat (any .bat will do)
set devmgr_show_nonpresent_devices=1
start devmgmt.msc

3) Double click DevManager.bat, and Device Manager comes up.
>From 'View' menu, select 'Show hidden devices'
Now, you'll see all devices including not-connected one

4) Under 'Port (COM and LPT)' tree, delete two instances of VCP
There is the parent 'USB Composite device' under 'USB Controller'
tree, but it is usually deleted automatically by deleting above two
child instances.
Delete the INF file
1) Search the INF file using Windows Find file function (Start button
> Search)
- File and Folder
- Search Word in the file: PLP2KUS.sys
- Location: C:\WINDOWS\inf (hidden folder)
- Advanced options:
- - System folder
- - Hidden file

OEMxxx.inf will be found (xxx: number).

2) Search C:\WINDOWS\inf folder for the file name, "OEMxx.*", like above
"OEMxxx.inf" and "OEMxxx.PNF" will be found
Delete both of them.
Delete the device driver SYS file
C:\WINDOWS\system32\drivers\PLP2KUS.sys

Tsuneo

--- In l..., "Gerthoffer, John"
wrote:
>
> Hi all,
>
>
>
> I was working with the Virtual COM example from Philips (AN10420, USB
> virtual COM port on LPC214x). During my evaluation, I installed the
> Windows driver PLP2KUS.sys. I would like to remove the driver, but
> Windows will not cooperate.
>
>
>
> I've read the Windows help on driver removal, however it doesn't seem to
> work for me. I get the Blue Screen and the PC instantly shuts down. I
> mean NOW.
>
>
>
> Thoughts?
>
>
>
>
>
> Regards,
>
> John G.
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
> =======================================================================> CONFIDENTIALITY NOTICE
> ----------------------
> This message, together with any attachments, may be legally privileged
> and is confidential information intended only for the use of the
> individual or entity to which it is addressed. It is exempt from
> disclosure under applicable law including court orders. If you are not
> the intended recipient, you are hereby notified that any use,
> dissemination, distribution or copy of this message, or any attachment,
> is strictly prohibited. If you have received this message in error,
> please notify the original sender and delete this message, along with
> any attachments, from your computer.
>
> Start a New Thread