This is an approximate break up of what version of Toolbook was released when.
1994 - Toolbook 1.53 1995 - Toolbook 3 1996 - Toolbook 4 1997 - Toolbook II / 5 1998 - Toolbook II / 6
( Toolbook 3, 4, 5 and 6 are very similar e.g. Toolbook 6 only adds ActiveX support )
