IoCreateFileSpecifyDeviceObjectHint on w2K

NTDEV
1

Hello,

IoCreateFileSpecifyDeviceObjectHint is available on a later service pack of
w2k and XP onwards.

For prior service packs in w2k where it is not available OSR article
http://www.osronline.com/article.cfm?id=258 suggests a way to implement this
functions features. But, this article applies to only filter drivers.

For non-filter drivers, e.g. that just respond to user-mode IOCTLS, any
concrete suggestions for implementing the features provided by this function
on prior service packs on w2k. Basically from a non-filter driver, I want to
send Create, Read and possibly other IRPs to a specific driver lower in the
device stack, bypassing some top level drivers.

Thanks in advance
Chandra

2

Hello,

Not sure why this email didn’t show up the first time. This is my second
try.

IoCreateFileSpecifyDeviceObjectHint is available on a later service pack of
w2k and XP onwards.

For prior service packs in w2k where it is not available OSR article
http://www.osronline.com/article.cfm?id=258 suggests a way to implement this
functions features. But, this article applies to only filter drivers.

For non-filter drivers, e.g. that just respond to user-mode IOCTLS, any
concrete suggestions for implementing the features provided by this function
on prior service packs on w2k. Basically from a non-filter driver, I want to
send Create, Read and possibly other IRPs to a specific driver lower in the
device stack, bypassing some top level drivers.

Thanks in advance
Chandra