Hi Alex,

Thanks for your advice. I have tried your methods, it is good.

We designed to start our encryption service by hooked GINA originaly.
It has been worked all ok, except one of our customers' got the problem
recently (Perhaps their network settings). The PC failed to discover
the PDC because encryption start after NetBIOS and couldn't establish
encryption session by the other end. I don't know how NetLogon
re-discover PDC or how I can force the local PC to re-discover the PDC.
In alternative approach, we try to start our encryption service before
NetBIOS and it works fine for external SCard reader. As I mentioned
before of using internal reader, I set the encryption service dependency
to Group "NDIS" and Service "SCardSvr" and I have got error "Detected
circular dependencies auto-starting service" from Cold-Start. This
error doesn't effect anything, our encryption API works fine and Laptop
running normal. I think some system process detected Gpr400 and
re-starts SCardSvr automatically after post error MSG. I want to avoid
this error message.

Any suggestion will be great help.

Regards

Zijing

-----Original Message-----
From: Alexander Keck [mailto:akeckCARDLOGON.COM]
Sent: Monday, 10 September 2001 8:09 PM
To: SmartCardSDKDISCUSS.MICROSOFT.COM
Subject: Re: Access SCReader before NetBios startup

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This message has been scanned for viruses.
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Hi,

I had a similar problem with our GINA replacement.
Before we used PC/SC, I even had to wait that the serial port becomes
available, because GINA was started before the serial.sys.
Anyway, since we used PC/SC, I had a problem (blue screen) when
searching
for the domain controller, because the workstation service was not
started....

I think you can solve your problem by either starting the Workstation
service before continuing (or by your hooked GINA), or make your service
depended on the Workstation service.

Hope this helps!
Alexander Keck
Microsoft Certified Systems Engineer
Microsoft Certified Database Administrator
Microsoft Certified Professional + Internet
Microsoft Certified Solution Developer IN PROGRESS!

LOGICO Smartcard Solutions GmbH
Microsoft Gold Certified Partner

----- Original Message -----
From: "Zijing YIN" <zyinSECURENET.COM.AU>
To: <SmartCardSDKDISCUSS.MICROSOFT.COM>
Sent: Thursday, September 06, 2001 1:00 AM
Subject: Access SCReader before NetBios startup

> Hi,
>
> I am writing an service program in Windows NT workstation 4. This
service
> program handles all encryption keys exchange with remote PC, so that
it
> needs to start up in the very early stage when PC power up. When the
> service starts up, it needs to access smartcard to get keys. We
re-wrote
> GINA to start our encryption service and they all work OK.
>
> But we have faced a problem recently we could not solve it so far.
Our
> customer use Laptop with smartcard reader Gpr400(GemPC 400) wants to
login
> from their local network to remote network through ISDN. They have
only
> one Primary Domain Controller on remote network and they use roaming
> profile. We found NetBIOS starts before our encryption service so
that
> NetLogon failed and pupup "No Domain Controller found... using local
> profile". But we still can access network resource after that because
> encryption start up now. User only logon fail from cold start PC.
>
> Question: Has anyone had this problem yet?
>
> We have changed our service to auto-start not demend-start by GINA and
> group it into "Extended base" group because it needs to talk serial
port.
> For external reader (GCR410) it works alright. For internal reader, I
set
> my service program dependency to service "Gpr400", but it doesn't
work.
It
> also doesn't work if I change dependency to service "SCardSvr", or
> group "Smart Card Service" or group "Smart Card Reader", the laptop
has
> warning "Detected circular dependencies auto-starting service" or "The
> SmartCard Resource Manager Service depends on the smart card reader
group
> and no menber of this group start". All Smart Card groups are not in
> ServiceGroupOrder List.
>
> Question: How can I access smartcard when my service start before
Winlogon?
>
> Any suggestion would be appreciated.
>
>
> Regards
>
> Zijing
>

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