The file YAHOOMESSENGER.EXE can destroy your system, thus making the computer to work abnormally.
YAHOOMESSENGER.EXE is a dangerous file.
RemoveYAHOOMESSENGER.EXE from your computer immediately.
Kill the process YAHOOMESSENGER.EXE and remove YAHOOMESSENGER.EXE from the Windows startup.

YAHOOMESSENGER.EXE Information and Removal:
YAHOOMESSENGER.EXE is known as: Spyware.Perfect [Symantec] not-a-virus:Monitor.Win32.Perflogger.ad [Kaspersky Lab] Keylog-Perfect.gen [McAfee] Mal/Generic-A [Sophos] MonitoringTool:Win32/PerfectKeylogger [Microsoft] MonitoringTool [Ikarus].
MD5 of YAHOOMESSENGER.EXE = 1112E89859A0F2B052D5EB1626E25664
YAHOOMESSENGER.EXE size is 438272 bytes.
Full path on a computer: %SYSTEM%\YAHOOMESSENGER.EXE
Related Files:
%SYSTEM%\BPK.DAT
%SYSTEM%\YAHOOMESSENGER.EXE
%SYSTEM%\YAHOOMESSENGERHK.DLL
%SYSTEM%\YAHOOMESSENGERR.EXE
%SYSTEM%\YAHOOMESSENGERWB.DLL