help.html definition, relationships, removal:

This is a part of a malicious parasite that violates user privacy and damages the compromised system. The help.html file can be used for different purposes depending on the related parasite's type, functionality and carried payload. Although help.html may not take any malicious actions by itself, it ensures that a parasite is working properly and therefore needs to be removed. DO NOT open, execute or edit help.html!
The help.html file is installed and used by keylogger Stealth Email Redirector. It is also related to other parasites such as keylogger TrojanSpy.Win32.Msgate, AntiLamer Backdoor, D.I.R.T, Hanky Panky and RAT Control Center. These threats can use help.html for different purposes, as the file's functionality depends on a particular parasite it belongs to.
Sometimes a presence of help.html does not indicate that your computer is infected. It can be an essential system file or a file installed by harmless legitimate software and therefore may not pose any threat to your privacy and the system. Although such cases are quite rare, you should thoroughly examine help.html before completely deleting or leaving it in the system.