Includes OS and Apps.
WINDOWS_3X_1.ISO's contents:
+---APPS
| +---MONEY30 -> Microsoft Money 3.0
| +---MSBOB
| | +---BOB100A -> Microsoft Bob 1.00a
| | +---BOBGATEW -> Microsoft Bob 1.00a - Gateway 2000 Edition
| | \---GREETING -> Microsoft Great Greetings 1.0a
| +---OFFICE43 -> Microsoft Office 4.3 Professional
| +---PUBLSHR
| | +---MSPUB20 -> Microsoft Publisher 2.0
| | +---PUBDP -> Microsoft Publisher Design Pack
| | +---PUBSLDP -> Microsoft Publisher StyleLine Design Pack
| | \---PUBSODP -> Microsoft Publisher Special Occasions Design Pack
| \---WORKS30 -> Microsoft Works 3.0
+---APPS2
| +---IE501 -> Microsoft Internet Explorer 5.01
| +---INTELLIP -> Microsoft IntelliPoint 1.1
| +---MEDIAP52 -> Windows Media Player 5.2
| +---SATSCRSV -> Microsoft Saturn Screen Saver
| +---SCENES
| | +---SCENES10
| | | +---IMPRESS -> Microsoft Scenes 1.0 Impressionist Collection
| | | +---NATURE -> Microsoft Scenes 1.0 Sierra Club Nature Collection
| | | \---OUTSPACE -> Microsoft Scenes 1.0 Outer Space Collection
| | \---SCENES20
| | +---BRTWIST -> Microsoft Scenes 2.0 Brain Twister Collection
| | +---FLIGHT -> Microsoft Scenes 2.0 Flight Collection
| | +---HOLLYW -> Microsoft Scenes 2.0 Hollywood Collection
| | +---NATURE -> Microsoft Scenes 2.0 Sierra Club Nature Collection
| | +---SPORTS -> Microsoft Scenes 2.0 Sports Extremes Collection
| | +---STEREOGR -> Microsoft Scenes 2.0 Stereogram Collection
| | +---UNDERSEA -> Microsoft Scenes 2.0 Undersea Collection
| | \---WILDLIFE -> Microsoft Scenes 2.0 Sierra Club Wildlife Collection
| +---SOUNDBIT
| | +---HANNABAR -> Microsoft SoundBits Hanna-Barbera
| | +---MOVIES -> Microsoft SoundBits Hollywood Movies
| | \---MUSICAL -> Microsoft SoundBits Musical Instruments
| +---TTFONTP -> Microsoft TrueType Font Pack
| +---TTFONTP2 -> Microsoft TrueType Font Pack 2
| +---VFW11 -> Microsoft Video for Windows 1.1e
| +---WIN32S
| | +---125A -> Microsoft Win32s 1.25a
| | \---130C -> Microsoft Win32s 1.30c
| \---WING -> Microsoft WinG 1.0
+---APPS3RD
| +---AREADER -> Adobe Acrobat Reader 3.01
| +---CALMIRA -> Calmira II 3.31
| +---INDEO41 -> Indeo Video 4.1
| +---NETSC408 -> Netscape Navigator 4.08
| +---NORTONDS -> Norton Desktop 3.0
| +---NORTONU -> Norton Utilities 8.0
| +---PCTOOLS2 -> PC Tools for Windows 2.0
| +---QTIME -> Apple Quicktime 2.1.2
| +---TOTALCMD -> Total Commander 6.58
| +---WINRAR -> WinRAR 2.06
| +---WINZIP -> WinZip 6.3
| \---XING14 -> XingMPEG Player 1.4
+---APPSW30
| +---APPS
| | +---EXCEL40A -> Microsoft Excel Version 4.0a
| | +---MONEY20A -> Microsoft Money 2.0a
| | +---POWERP20 -> Microsoft PowerPoint 2.0
| | +---PUBL10A -> Microsoft Publisher 1.0a
| | +---WORD20C -> Microsoft Word 2.0c
| | +---WORKS20A -> Microsoft Works 2.0a
| +---GAMES
| | +---BOWEP -> Best of Microsoft Entertainment Pack
| | +---WEP1 -> Microsoft Entertainment Pack 1
| | +---WEP2 -> Microsoft Entertainment Pack 2
| | +---WEP3 -> Microsoft Entertainment Pack 3
| | \---WEP4 -> Microsoft Entertainment Pack 4
| \---MMAPPS
| \---BOOKSH92 -> Microsoft Bookshelf 1992 Edition
+---GAMES
| +---BOWEP -> Best of Microsoft Entertainment Pack
| +---MSARC -> Microsoft Arcade
| +---MSGOLF -> Microsoft Golf Multimedia Edition 1.0
| +---MSGOLF20 -> Microsoft Golf 2.0
| +---WEP1 -> Microsoft Entertainment Pack 1
| +---WEP2 -> Microsoft Entertainment Pack 2
| +---WEP3 -> Microsoft Entertainment Pack 3
| \---WEP4 -> Microsoft Entertainment Pack 4
+---KIDS
| +---CWRIT11 -> Microsoft Creative Writer 1.1
| +---FINEART -> Microsoft Fine Artist 1.1b
+---MMAPPS
| +---BOOKSH95 -> Microsoft Bookshelf 95
| +---CINEMA95 -> Microsoft Cinemania 95
| \---ENCART95 -> Microsoft Encarta 95
+---MMKIDS
| +---EXPNATUR -> Microsoft Explorapedia: The World of Nature
| \---EXPPEOPL -> Microsoft Explorapedia: The World of People
+---MSDOS622
| +---MSDOS622 -> Microsoft MS-DOS 6.22
| \---SUPPLMNT -> Microsoft MS-DOS 6.22 Supplemental Utilities
+---TRAINING
| +---PRODPACK -> Microsoft Productivity Pack
+---UPDATE
| +---CALC -> Calculator Update
| +---DRIVERS
| | +---CGA -> CGA Display Driver
| | +---EGA -> EGA Display Driver
| | +---HERC -> Hercules Display Driver
| | +---PCSPEAK -> PC Speaker Driver
| | \---SVGAW31 -> Super VGA Driver for Windows 3.1
| +---OLE202 -> OLE 2.02
| +---PTP -> Point-to-Point Server
| +---RMM -> RMM.D32 Update
| +---SERIALDR -> SERIAL.386 Driver Update
| +---TCP32B -> Microsoft TCP/IP-32
| +---VBRUN -> Microsoft Visual Basic Run-time Files
| +---VBRUN400 -> Microsoft Visual Basic 4.0 Run-time Files
| +---WFWADD -> Windows 3.1 Files left out of WFW 3.11
| +---WIN3EURO -> Euro Symbol Update
| \---WINFILE -> File Manager Update
+---VMDRIVER
| +---AMDPCNET -> Network Driver
| +---CPUIDLE -> DOSidle, WQGHLT
| +---SB16 -> Sound Blaster 16 Driver
| \---SVGAVMW -> SVGA Patch for VMWare
+---WIN30 -> Microsoft Windows 3.0
+---WIN30MM -> Microsoft Windows 3.0 with Multimedia
+---WIN31 -> Microsoft Windows 3.1
+---WIN311 -> Microsoft Windows 3.11
\---WINFW311 -> Microsoft Windows for Workgroups 3.11
WINDOWS_3X_2.ISO's contents:
\---MMAPPS
+---ANCLANDS -> Microsoft Ancient Lands
+---ARTGALL -> Microsoft Art Gallery
+---ASIMOV -> Isaac Asimov's The Ultimate Robot
+---DANGERCR -> Microsoft Dangerous Creatures
+---DINOSAUR -> Microsoft Dinosaurs
+---DOGS -> Microsoft Dogs
+---FLWRIGHT -> The Ultimate Frank Lloyd Wright
\---MUSICAL -> Microsoft Musical Instruments
WINDOWS_3X_3.ISO's contents:
+---MMAPPS
| +---500NATNS -> Microsoft 500 Nations
| +---BASEBALL -> Microsoft Complete Baseball Guide 1995 Edition
| +---BSKTBALL -> Microsoft Complete NBA Basketball
| +---JULIACH -> Microsoft Julia Child: Home Cooking with Master Chefs
| \---WINEGUID -> Microsoft Wine Guide
\---MMKIDS
+---LEOPARD -> How the Leopard Got His Spots
+---MSBHUMAN -> The Magic School Bus Explores the Human Body
+---MSBSOLAR -> The Magic School Bus Explores the Solar System
\---TUHHOUSE -> Gahan Wilson’s The Ultimate Haunted House
WINDOWS_95_1.ISO's contents:
+---APPS
| +---FRONTP97 -> Microsoft FrontPage 97
| +---GREETW2 -> Microsoft Greetings Workshop 2.0
| +---MONEY97 -> Microsoft Money 97
| +---OFFICE97 -> Microsoft Office 97
| +---PICTUR20 -> Microsoft Picture It! 2.0
| +---PLUS -> Microsoft Plus! for Windows 95
| +---PUBL97 -> Microsoft Publisher 97
| \---WORKS45 -> Microsoft Works 4.5
+---APPS2
| +---DIRECTX -> Microsoft DirectX 8.0a
| +---IE55SP2 -> Microsoft Internet Explorer 5.5 SP2
| +---INTELL20 -> Microsoft IntelliPoint 2.0
| +---TWEAKUII -> TweakUI 1.33
| +---WININST -> Windows Installer
| \---WMP64 -> Windows Media Player 6.4
+---APPS3RD
| +---AFTERDRK -> After Dark 4.0 + Modules
| +---AREADER -> Adobe Acrobat Reader 5.05
| +---FIREFOX -> Mozilla Firefox 1.5.0.9
| +---FLASHPL -> Adobe Flash Player 7
| +---NETSCNAV -> Netscape Communicator 4.8
| +---NORTONU3 -> Norton Utilities for Windows 3.0
| +---OPERA -> Opera 10.10
| +---PRINTSHP -> The Print Shop Ensemble III
| +---QTIME -> Apple QuickTime 5
| +---S-YXG70 -> Yamaha XG SoftSynthesizer S-YXG70
| \---WINRAR -> WinRAR 3.80
+---KIDS
| +---CWRITER2 -> Microsoft Creative Writer 2
| \---PLUSKIDS -> Microsoft Plus! for Kids
+---UPDATE
| +---USBUNOFF -> XUSBSUPP - eXtended USB Supplement
| \---W95UNOFF -> Microsoft Windows 95 Unofficial Update
+---VMDRIVER
| \---SBPCI128 -> Sound Blaster PCI128 Driver
+---W95OSR1
| +---OLDMSDOS -> Windows 95 Supplemental DOS Tools
| \---WIN95 -> Microsoft Windows 95 OSR 1
\---WIN95 -> Microsoft Windows 95 OSR 2.5
WINDOWS_95_2.ISO's contents:
+---MMAPPS
| +---BOOKSH97 -> Microsoft Bookshelf 1996-97 Edition
| +---CINEMA97 -> Microsoft Cinemania 97
| +---ENC97WA -> Microsoft Encarta 97 World Atlas
| +---ENCART97 -> Microsoft Encarta Encyclopedia 97
| \---MUSICC97 -> Microsoft Music Central 97
\---OPTIONAL
+---MONEY95 -> Microsoft Money 95
+---OFFICE95 -> Microsoft Office 95 Professional & Bookshelf
\---PUBL95 -> Microsoft Publisher 95
WINDOWS_95_3.ISO's contents:
+---GAMES
| +---CCOMBAT -> Close Combat
| +---DEADLYTD -> Deadly Tide
| +---FLSIM95
| | +---1-SETUP -> Flight Simulator for Windows 95
| | +---2-SCENER -> Microsoft Scenery Pack for Flight Simulator
| | \---3-EXPACK -> Expansion Pack for Flight Simulator for Windows 95
| +---FURY3 -> Fury3
| +---GEX -> Gex
| +---MTRUCKM -> Monster Truck Madness
| \---ROARCADE -> Microsoft Return of Arcade
+---GAMES3RD
| \---FULLTILT -> Full Tilt! Pinball
\---MMKIDS
+---3DMM -> Microsoft 3D Movie Maker
\---NICK3DMM -> Nickelodeon 3D Movie Maker
WINDOWS_95_4.ISO's contents:
+---GAMEKIDS
| \---BTLCLIMB -> Beyond the Limit - Ultimate Climb
+---GAMES
| +---AOE -> Age of Empires
| +---CARTPR -> CART Precision Racing
| +---CCOMBAT2 -> Close Combat: A Bridge Too Far
| +---GOLF30 -> Microsoft Golf 3.0
| +---HELLBEND -> Hellbender
| +---NBAFCP -> NBA Full Court Press
| +---PUZZLECO -> Microsoft Entertainment Pack: The Puzzle Collection
| \---SOCCER -> Microsoft Soccer
\---TRAINING
+---HOW&WHY -> Microsoft Windows 95 How & Why
\---W95SH -> Microsoft Windows 95 Starts Here
WINDOWS_95_5.ISO's contents:
+---MMAPPS
| +---BSKTBALL -> Microsoft Complete NBA Basketball '95-'96 Edition
| +---COMPDIYG -> Microsoft Complete Do-It-Yourself Guide
| +---GARDEN -> Microsoft Complete Gardening
| +---OCEANS -> Microsoft Oceans
| \---WOFLIGHT -> Microsoft World of Flight
\---MMKIDS
\---READING
+---BUNYAN -> PJ's Reading Adventures - Paul Bunyan
+---KOI -> PJ's Reading Adventures - Koi and the Kola Nuts
\---LEOPARD -> PJ's Reading Adventures - How the Leopard Got His Spots
WINDOWS_98_1.ISO's contents:
+---APPS
| +---FRONTP98 -> Microsoft Frontpage 98
| +---GREETW2 -> Microsoft Greetings Workshop 2.0
| +---MONEY98 -> Microsoft Money 98
| +---OFFICE97 -> Microsoft Office 97 Professional
| +---OUTLK98 -> Microsoft Outlook 98
| +---PICTUR20 -> Microsoft Picture It! 2.0
| +---PLUS!98 -> Microsoft Plus! 98
| +---PUBL98 -> Microsoft Publisher 98
| \---WORKS45A -> Microsoft Works 4.5a
+---APPS2
| +---DIRECTX -> Microsoft DirectX 9.0c
| +---IE6SP1 -> Microsoft Internet Explorer 6 SP1
| +---INTELLIP -> Microsoft IntelliPoint 2.2
| +---NETFX20 -> Microsoft .NET Framework 2.0
| +---TWEAKUI -> TweakUI 1.33
| \---WMP9 -> Windows Media Player 9
+---APPS3RD
| +---98LITE47 -> 98lite Professional 4.7
| +---AREADER -> Adobe Acrobat Reader 5.05
| +---CCLEANER -> Piriform CCleaner 2.36
| +---FIREFOX -> Mozilla Firefox 2.0.0.20
| +---FLASHPL -> Adobe Flash Player 9
| +---NETSCNAV -> Netscape Navigator 9.0.0.6
| +---NORTONU4 -> Symantec Norton Utilities for Windows 4.0
| +---OPERA -> Opera 10.63
| +---QTIME -> Apple Quicktime 6.5.2
| +---VLC086I -> VideoLAN VLC Media Player 0.8.6i
| \---WINRAR -> WinRAR 3.93
+---TRAINING
| \---W98SH -> Microsoft Windows 98 Starts Here
+---UPDATE
| \---W98UNOFF -> Microsoft Windows 98 SE Unofficial Update
+---VMDRIVER
| \---SBPCI -> Sound Blaster PCI 128 Driver
\---WIN98 -> Microsoft Windows 98 Second Edition
WINDOWS_98_2.ISO's contents:
+---GAMES
| +---FS98 -> Microsoft Flight Simulator 98
| +---GOLF98 -> Microsoft Golf 1998 Edition
| +---MTRUCKM2 -> Monster Truck Madness 2
| +---PINBLARC -> Microsoft Pinball Arcade
| +---ROARC -> Microsoft Revenge of Arcade
| \---UASSAULT -> Urban Assault
\---MMAPPS
+---BOOKSH98 -> Microsoft Bookshelf 98
+---ENCART98 -> Microsoft Encarta 98 Encyclopedia
\---EWA1998 -> Encarta World Atlas 1998 Edition
WINDOWS_98_3.ISO's contents:
\---GAMES
+---AOEGOLD -> Age of Empires Gold Edition
+---BASEB3D -> Microsoft Baseball 3D
+---CCOMBAT3 -> Microsoft Close Combat III: The Russian Front
+---GOLF99 -> Microsoft Golf 1999 Edition
+---COMBATFS -> Combat Flight Simulator
+---MIDTOWN -> Midtown Madness
+---MOTOCM -> Motocross Madness
\---OUTWARS -> Outwars
WINDOWS_2000.ISO's contents:
+---APPS
| \---WORK2000 -> Microsoft Works 2000
+---APPS2
| +---SILVERL -> Microsoft Silverlight 4.0.60831.0
| \---TWEAKUI -> TweakUI 1.33
+---APPS3RD
| +---7-ZIP -> 7-Zip 19.00
| +---AFLASHPL -> Adobe Flash Player 11.1
| +---AREADER -> Adobe Acrobat Reader 9.5.0
| +---CCLEANER -> Piriform CCleaner 3.28
| +---FIREFOX -> Mozilla Firefox 12.0
| +---NETSCNAV -> Netscape Navigator 9.0.0.6
| +---NU2001 -> Symantec Norton Utilities 2001
| +---OPERA -> Opera 12.02
| +---QTIME -> Apple Quicktime 7.1.6
| +---VLC -> VideoLAN VLC Media Player 1.1.11
| \---WINRAR -> WinRAR 4.11
+---OFFI2000 -> Microsoft Office 2000 Premium
+---PD2000 -> Microsoft PhotoDraw 2000 Version 2
+---UPDATE
| \---COMPPACK -> Microsoft Office Compatibility Pack
\---WIN2000 -> Microsoft Windows 2000 Professional SP4 CD
WINDOWS_ME_1.ISO's contents:
+---APPS
| \---WORK2000 -> Microsoft Works 2000
+---APPS2
| +---DIRECTX -> Microsoft DirectX 9.0c
| +---IE6SP1 -> Microsoft Internet Explorer 6 SP1
| +---INTELLIP -> Microsoft IntelliPoint 3.2
| +---NETFX20 -> Microsoft .NET Framework 2.0
| +---TWEAKUI -> TweakUI 1.33
| +---WININST -> Windows Installer
| \---WMP9 -> Windows Media Player 9
+---APPS3RD
| +---7-ZIP -> 7-Zip 9.20
| +---98LITE47 -> 98lite Professional 4.7
| +---AREADER -> Adobe Acrobat Reader 5.05
| +---CCLEANER -> Piriform CCleaner 2.36
| +---FIREFOX -> Mozilla Firefox 2.0.0.20
| +---FLASHPL -> Adobe Flash Player 9
| +---NETSCNAV -> Netscape Navigator 9.0.0.6
| +---NU2001 -> Symantec Norton Utilities 2001
| +---OPERA -> Opera 10.63
| +---QTIME -> Apple Quicktime 6.5.2
| +---VLC -> VideoLAN VLC Media Player 0.8.6i
| \---WINRAR -> WinRAR 3.93
+---OFFI2000 -> Microsoft Office 2000 Premium
+---PD2000 -> Microsoft PhotoDraw 2000 Version 2
\---WIN9X -> Microsoft Windows Millennium Edition
WINDOWS_ME_2.ISO's contents:
+---APPS
| +---HPUB2000 -> Microsoft Home Publishing 2000
| +---MONE2000 -> Microsoft Money 2000
| \---PI2000 -> Microsoft Picture It! 2000
+---MMAPPS
| \---BKSH2000 -> Microsoft Bookshelf 2000
\---OPTIONAL
\---WORKS6 -> Microsoft Works 6.0
WINDOWS_ME_3.ISO's contents:
+---GAMES
| +---MSCASINO -> Microsoft Casino
| +---MSCBG -> Microsoft Classic Board Games
| +---PANDORA -> Pandora's Box: Puzzle Game of the Year Edition
| \---ROARCAE -> Microsoft Return of Arcade Anniversary Edition
\---MMAPPS
\---ENCS2000 -> Microsoft Encarta Reference Suite 2000
WINDOWS_ME_4.ISO's contents:
\---GAMES
+---CFS2 -> Combat Flight Simulator 2
+---FS2000 -> Microsoft Flight Simulator 2000
+---MIDTOWN2 -> Midtown Madness 2
+---MOTOCM2 -> Motocross Madness 2
+---PLUSGMS -> Microsoft Plus! Game Pack: Cards and Puzzles
\---SLANCER -> StarLancer
WINDOWS_ME_5.ISO's contents:
\---GAMES
+---AOE2 -> Age of Empires II: The Age of Kings
+---AOE2CONQ -> Age of Empires II: The Conquerors
+---BASE2001 -> Microsoft Baseball 2001
+---GOLF2001 -> Microsoft Golf 2001
+---IF2000 -> Microsoft International Football 2000
+---MECHWAR4 -> MechWarrior 4: Vengeance / Black Knight
+---NBA2000 -> NBA Inside Drive 2000
\---NFLF2000 -> Microsoft NFL Fever 2000
WINDOWS_ME_6.ISO's contents:
\---GAMES
+---CRIMSONS -> Crimson Skies
+---LNKS2001 -> Links 2001
+---MECHCOM2 -> MechCommander 2
\---TRAINSIM -> Microsoft Train Simulator
Special thanks to A-ManWare for helping me out with the ISO contents!
For XP and Vista, sadly there wasn't a file called "DIRLIST.TXT", but hopefully, let's hope A-ManWare can help me out with that!