Question: My computer gives an error message on starting Windows XP: Windows cannot find soproce.exe - C:\PROGRA~1\SOFTWA~1\soproce.exe

Answer:

Do not know what soproc.exe is. It is not on my computer.

A search of the registry shows an entry in HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run of SOProc_SoRefRegSoAlertWxLiteNnAj

This referenced a non-existing program and I deleted the key, which stopped the error message.

Warning: make a backup of your registry before making changes.

Go to Start, Run and run regedit.exe to edit the registry.