[MSDN Library June 1998] Windows Help (HLP) File Format Is Not Available (58.2456140350877%)

MSDN Library Visual Studio 6.0 > Knowledge Base > Windows Software Development Kit

[MSDN Library September 1992] Windows Help (.HLP) File Format Is Not Available (48.859126984127%)

Knowledge Base and Bug Lists > Windows SDK KBase

[MSDN Library June 1998] Windows 3.1 Card File Format (44.4158268010452%)

MSDN Library Visual Studio 6.0 > Knowledge Base > Windows Software Development Kit

[MSDN Library June 1998] Windows Help Internal Variables (44.4158268010452%)

MSDN Library Visual Studio 6.0 > Knowledge Base > Windows Software Development Kit

[MSDN Library June 1998] Windows Paintbrush File Format (43.8839119074281%)

MSDN Library Visual Studio 6.0 > Knowledge Base > Windows Software Development Kit

[MSDN Library June 1998] Windows Help Print Macro Does Not Print Pop-up Contents (42.3365231259968%)

MSDN Library Visual Studio 6.0 > Knowledge Base > Windows Software Development Kit

[MSDN Library September 1992] Windows Help Menus (29.7621483126802%)

Unsupported Tools & Utilities > Windows Help Authoring Guide > Chapter 1 The Windows Help Application > Windows Help Menus

[MSDN Library September 1992] Windows 3.00 Font Files Are Larger Than Documented (28.2202380952381%)

Knowledge Base and Bug Lists > Windows SDK KBase

[MSDN Library September 1992] Windows SDK: DDE Protocol for Initiate and Acknowledge (27.9486331569665%)

Knowledge Base and Bug Lists > Windows SDK KBase

[MSDN Library September 1992] Windows Help Project Editor (27.8780395136778%)

Unsupported Tools & Utilities > Windows Help Authoring Guide > Chapter 5 Using Help Author > Windows Help Project Editor