SvCom is an integrated package of classes and tools for development of service applications and use of NT Security framework. Currently SvCom components work with Delphi 6, 7, 2005, 2006, 2007, 2009, 2010, XE, XE2 and XE3, XE4, XE5 both 32 and 64 bit under all flavors of Windows. Features of SvCom are as follows:

Advanced service debugging directly from the IDE.
Support of service failure actions
DCOM support (DCOM server in Service)
Enhanced support for DCOM objects: singleton model, apartment threading model, events support
MIDAS server in service support
Support of interactive service applications
Configurable services support
Message processing support
Timer for services (Cool)
Security-related non-visual components
Security-related visual controls
Logon/logoff detector
Easy process enumeration (All in one function)
Tools and utils

Home:

http://www.aldyn-software.com/svcom.html

Only for V.I.P