Untrusted search path vulnerability in XacRett before 50 allows attackers to execute arbitrary code via a Trojan horse executable file, related to the explorer.exe filename and use of Windows Explorer.
http://www.securityfocus.com/bid/44125
http://www.kmonos.net/lib/info/xacr49-vul.ja.html
http://secunia.com/advisories/41850