This indicates an attack attempt to exploit a memory corruption vulnerability in the pdwizard.ocx ActiveX control for Internet Explorer.
The vulnerability is caused by an error in the pdwizard.ocx ActiveX control. It may allow a remote attacker to execute arbitrary code via a maliciously crafted HTML document.
Internet Explorer 5.01, 6 SP1, and 7.
System Compromise: Remote attackers can gain control of vulnerable systems.
Apply patch, available from the web site: