[MSDN Library June 1998] User-supplied routines (100%)

MSDN Library Visual Studio 6.0 > Specifications > Technologies and Languages > Component Object Model (COM) Specification 0.9 > Chapter 13: Type Information > Object RPC IDL Extensions

[MSDN Library June 1998] User Properties (32.1075205640423%)

MSDN Library Visual Studio 6.0 > Platform SDK > Internet/Intranet/Extranet Services > Component Library > Microsoft Chat Controls > Microsoft Chat Protocol 2.0 > Microsoft Chat Protocol Control 2.0 Visual Basic Reference (Beta1 Release) > Object Properties

[MSDN Library June 1998] User Events (29.4098892112385%)

MSDN Library Visual Studio 6.0 > Platform SDK > Database and Messaging Services > Extending the Microsoft Exchange Client > Guide > Using Client Extensions > Event Extensions > Implementing Event Extensions

[MSDN Library June 1998] User-Defined Types (28.6245059288538%)

MSDN Library Visual Studio 6.0 > Books > Hardcore Visual Basic > Chapter 2: The Second Level of Basic Enlightenment > The API Contract

[MSDN Library June 1998] User-level Security (28.4611330698287%)

MSDN Library Visual Studio 6.0 > Platform SDK > Database and Messaging Services > Microsoft SQL Server Programmer's Toolkit > Administrator's Companion > Chapter 13 Replication Concepts > Replication Security

[MSDN Library September 1992] User-Defined Types (27.0095990965556%)

Product Documentation > QuickC for Windows > C for Windows > PART 2 Using C > Chapter 0 C Language Guide > Advanced Data Types

[MSDN Library September 1992] User-Defined Macros (26.7816205533597%)

Product Documentation > C/C++ 7.0 > Environment and Tools > PART 4 Utilities > Chapter 18 Managing Projects with NMAKE > 18.7 Macros

[MSDN Library September 1992] User-Defined Buttons (26.2866847826087%)

Books and Magazine Articles > Programming Windows 3.0 (Petzold) > PART 2 READING INPUT > Chapter 6 Child Window Controls > THE BUTTON CLASS

[MSDN Library September 1992] User-Defined Names (26.0095990965556%)

Product Documentation > QuickC for Windows > C for Windows > PART 2 Using C > Chapter 0 C Language Guide > General Syntax

[MSDN Library September 1992] User Button Notification Codes (25.8744721605503%)

Product Documentation > C/C++ 7.0 > Class Libraries Reference > PART 1 Introduction to the Microsoft Foundation Class Library > Chapter 6 Message Map Cross-Reference > 6.4 Handlers for Child Window Notification Messages