[mikebromwich]

Thanks you for the advice – I’ll have a look into ZwQuerySystemInformation.

In the mean time, I have taken your advice and queried the speed of the interface (using OID_GEN_LINK_STATE Oid) – and created a rate limiter. This has solved the problem and allowed me to progress.

Thanks,

[mikebromwich]

Thanks for your reply Vadim.

The issue is that the Pool Nonpaged Bytes reduces as traffic increases – and when it reaches zero, the program fails.

If I stop sending, then the Pool Nonpaged Bytes slowly reduces to normal levels as the packets I have sent to the driver are sent to the network.

I was wondering whether there was any way to read the length of this queue, in a similar way as GetAdapterPacketQueueSize for reading the queue for packets queued in the other direction.

Generally, the driver is working very well – great work.

Mike

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