IQuery Transaction ID

Greetings,

I have a question with regards to how the Transaction ID is generated
for an Inverse Query. Is the Transaction ID supposed to be "/09/80" for
all versions of BIND for every transaction or should it vary for each
transaction? The reason I am asking this is because of a documented
BIND vulnerability (CERT - CA-98.05, CVE-1999-0009).

The OS on the DNS server is Win2k.

Any help is greatly appreciated. Thank you in advance.

Vince