We need to know if the ms patch application process has any impact on the operation of the ISAPI pubcookie filter.
This involves setting up a vanilla w2k box, install and config pubcookie, make sure everything is working, and then apply all ms patches to the os and iis, after that see if pubcookie still works.


Check the pubcookie archives for reports of problems
We shouldn't forget to also check their website to see if there are problems with patches on ms platforms. Checking their mail list archives would be a good bet.