From: Ed Lau [elau@midcore.com]
Sent: Monday, February 12, 2001 12:49 PM
To: NT Developers Interest List
Subject: [ntdev] Re: How can i load driver from kernel mode

You can use the (undocumented) call ZwLoadDriver(...) to load the driver and then use IoGetDeviceObjectPointer(...) to get a  pointer to the driver's device object. This pointer can be used 
in calls to IoCallDriver(...) if you need that functionality. The call to ZwLoadDriver(...) will cause the loader to call the second driver's DriverEntry(...) function. The prototype for ZwLoadDriver() is:

NTSYSAPI NTSTATUS NTAPI ZwLoadDriver(IN PUNICODE_STRING RegistryPath);

where RegistryPath is in the form:

\\Registry\\Machine\\System\\CurrentControlSet\\Services\\MyDriver

The registry key for your driver must exist. Also, the call must be made while your first driver is at PASSIVE_LEVEL (such as during  DriverEntry()). Of course, this is an undocumented function, so use it
at your own risk.

Ed Lau


MidCore Software, Inc.
900 Straits Tpke
Middlebury, CT 06762

----- Original Message ----- 
From: Gladkov Vladimir 
To: NT Developers Interest List 
Sent: Monday, February 12, 2001 12:28 PM
Subject: [ntdev] How can i load driver from kernel mode


Hello All!
Hope I'll be more lucky this time...

How can I load another driver from within kernel mode?
(I need something similar to CreateService in usermode)

Thanks!
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