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MSDN Library - April 2000 > Platform SDK > User Interface Services > Windows User Interface > Windowing > Windows > About Windows > Window Types
[MSDN Library June 1998] Pop-up Window (38.082298136646%)
MSDN Library Visual Studio 6.0 > Platform SDK > User Interface Services > Windowing > Windows > About Windows > General Window Styles
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MSDN Library - April 2000 > Books > The Windows User Experience > Windows Interface Components > 9: Secondary Windows
[MSDN Library June 1998] Pop-up Windows (33.3104395604396%)
MSDN Library Visual Studio 6.0 > Books > The Windows Interface Guidelines for Software Design > Chapter 8 Secondary Windows
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MSDN Library Visual Studio 6.0 > Books > The Windows Interface Guidelines for Software Design > Chapter 7 Menus, Controls, and Toolbars > Menus
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MSDN Library Visual Studio 6.0 > Microsoft Office Development > Office 97 Documentation > Office > Microsoft Office 97 Compatible Toolkit > Office Compatible 97 Pre-Testing Questionnaire Checklist > Section D: Non-File-Based Standalone Applications
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MSDN Library Visual Studio 6.0 > Microsoft Office Development > Office 97 Documentation > Office > Microsoft Office 97 Compatible Toolkit > Office Compatible 97 Pre-Testing Questionnaire Checklist > Section C: File-Based Standalone Applications
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MSDN Library - April 2000 > Platform SDK > User Interface Services > Accessibility > Microsoft Active Accessibility > Active Accessibility Appendixes > Appendix A: Supported User Interface Elements Reference
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MSDN Library - April 2000 > Knowledge Base > Windows > Windows NT
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MSDN Library - April 2000 > Knowledge Base > Windows > Windows 3.x Retail Product