source: http://www.securityfocus.com/bid/38661/info

Microsoft Windows is prone to a remote command-execution vulnerability because it opens help files from unsafe locations.

An attacker could exploit this issue by enticing a victim to load help files when working in a directory containing crafted '.chm' files.

Windows 2000 and XP are vulnerable; other versions may also be affected. 

https://github.com/offensive-security/exploit-database-bin-sploits/raw/master/bin-sploits/33750.zip