WinTabs

WinTabs is a little program that makes it easier to access multiple documents while using one of 71 supported programs (full list below).

It adds to the caption bar a series of tabs, each representing an open document. With each new document you open, a new tab is added. To change active document, user only has to click on the document tab. WinTabs itself runs as a convenient icon in the System Tray area of the Windows taskbar. Ample documentation is included, together with full support for installation and uninstallation.
Wintabs works with 71 programs: Acrobat, Adobe Illustrator, Adobe/Acrobat Reader, AOL
Press, AutoCAD, Axialis Icons, Borland Image Editor, C++Builder, Capture
Professional, Cetus CNotePad, Cetus CWordPad, Cool3D, CorelDRAW, DejaVu,
Delphi, Drag And File Gold, EmEditor, Eudora, Excel, Explorer, Fireworks,
Flash, Forte Agent, Freehand, FrontPage 98, FrontPage Express, gvim, Internet
Explorer, InternetSurfer, K-Meleon, Lotus Approach Millenium Edition,
Lotus WordPro, Macromedia Dreamweaver, Maruo, Mathcad, Metapad, Microangelo
98, Micrografx Draw, Microsoft Photo Editor, Microsoft Project 2000,
Microsoft VBA Editor, Netscape Navigator, NoteBook, Notepad, NoteWorthy
Composer, OpenOffice.org, Opera, Outlook, Outlook Express, PageMaker, Paint, Paint Shop
Pro, Pegasus Mail, PHOTO-PAINT, PhotoShop, PMMail 98, PowerPoint, Putty,
RegEdt32, RISA-2d, Siemens STEP7, SmartDraw Professional, Sun StarOffice,
TextPad, TurboCAD Professional, Visio, Visual C++, Word, WordPad, WordPerfect,
Ziff-Davis Media PC Benchmark Results Viewer.