Services.exe should have nothing to do with opening the Control Panel.  The
Control Panel runs in Shell32.dll under explorer.exe.

The Services Control Manager (services.exe) is responsible for starting,
stopping and interacting
with system services.

[[Note: services.exe can be a process which is registered as a trojan. This
Trojan allows attackers to access your computer from remote locations,
stealing passwords, Internet banking and personal data. This process is a
security risk and should be removed from your system.]]

UPDATE your antivirus software and run a full system scan.

UPDATE whatever anti-spyware applications that you have and run a full
system scan with each one.

You might want to start in Safe Mode to run your antivirus and anti-spyware
software.

Running a full system antivirus scan or anti-spyware scan in Safe Mode can
be a good idea.  Some viruses and other malware like to conceal themselves
in areas Windows protects while using them.  Safe mode will prevent those
applications access and therefore unprotect the viruses or other malware
allowing for easier removal.

How to start Windows in Safe Mode Windows XP
http://www.bleepingcomputer.com/forums/index.php?showtutorial=61#winxo