Request to Run ActiveX control on MOSS Sites

Today I was passed an email about public-facing MOSS and WSS sites prompting users to run an ActiveX control on the page. The control wants to run name.dll which is used by the presence feature in WSS. There is a workaround until Microsoft can fix the issue. This article explains the issue in more depth and provides the workaround:

http://www.sharepointblogs.com/mossman/archive/2007/09/13/fixing-the-name-dll-activex-problem-the-mossman-way.aspx

This seems to be a sporadic issue. We have a couple of public-facing sites and one has been prompting users to run the ActiveX control and the other, which is a much more heavily trafficked site, has not prompted a single user to run the control. The only other difference is that one site has anonymous access turned on and this could be the key to this issue not appearing on that site.