Lothian Productions' Control Toolkit - Version 1.15.85 The Lothian Productions Control Toolkit is a set of OCX routines that allow Windows 98 style functionality in any 32 bit Windows project. The controls are intended to replace core Windows controls such as the Button or Label controls in a programming project. Although the toolkit was designed for use with Visual Basic 5 or 6, it can be used in any program with OCX capabilities.