Untrusted search path vulnerability in Windows Media Encoder 9 on Microsoft Windows XP SP2 and SP3, Windows Server 2003 SP2, Windows Vista SP1 and SP2, and Windows Server 2008 Gold and SP2 allows local users to gain privileges via a Trojan horse DLL in the current working directory, as demonstrated by a directory that contains a Windows Media Profile (PRX) file, aka "Insecure Library Loading Vulnerability."