filtnt.sys in Outpost Firewall Pro prior to 3.51.759.6511 (462) allows local users to cause a denial of service (crash) via long arguments to mshta.exe.
source: wwwsecurityfocuscom/bid/19026/info
Outpost Firewall is prone to a local denial-of-service vulnerability
An attacker can exploit this issue to crash the application, effectively denying service
Outpost Firewall Pro version 35631 is affected by this issue; other versions may also be vulnerable
c:\> mshtaexe longgggggggg ...