SNMP recieve message fails

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C++

VC9.0

Hi,

I am developing a sample snmp application for testing the snmp functions.

I used various functions in winsnmp.h, for creating a session, creating a vbl, creating a pdu etc.
At last I send a pdu with an oid to a specific device(Printer).

But in my Call back function the WPARAM return 108 instead of 0.
Why is it so ?

Thanks in Advance,

Lajesh.D