A type library can be thought of as a binary version of an IDL
(interface Definition Language) file. Visual basic creates a type
library when you create a VB server object, thus eliminating the need
for an IDL file. A C-like language used to define interfaces and co-
classes for COM. Ole View is a COM utility that reverse-engineers a
type library into a readable form of IDL. IDL is used to provide
language-independence for COM interfaces so that identical interfaces
defined in VB, C++, and Java look the same in IDL even though they look
different in the language used for implementation.
Other Types of Type Library
There is also the type library in the system that is used to display
the type or font on the screen and printed document. This type or font
library is located in the systems registry. Every time a program calls
upon the type library top to display the font, the type library looks
up the registry to locate the type that has to be displayed. If the
type is not present in the library the page displays the default of the
closest matching font for that type....

Registry Repair: http://groups.yahoo.com/group/regrepairsbv