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Cabinet Files (DOS/win95/98/Me)

Cabinet files are compressed collections of files - a little like ZIP files, though these have .CAB filetypes.

All the Microsoft support articles that list the file contents of the Cabinet files within the various versions of win95/98 are listed below.

Contents
Windows System CAB files
These are the files from which the Windows operating system was originally built.

Windows keeps a record of the location of the drive and folder of these files (see end of this section) so that, if any part of the system files are installed or re-installed, it knows where to find them. Experience suggests that this record can often be wrong, however, & extracting a fresh file can sometimes be a touch difficult.

The operating system was originally loaded either:

These days the CAB's are often on the hard disc. These is convenient, as the Windows system CD does not need to be put in the CDROM every time a portion of Windows is re-installed. The downside is that it leaves these files open to software corruption.

To discover where they are:

If the Cabinet files are on disc there should be 20 or more files with Windows-like names all in the same directory (often Options\Cabs). If not, put the Windows CD in the CDROM & try again.

Registry location:

Extracting from Cabinet files
There are a number of ways of extracting a file, depending both on your version of Windows & on the programs that you have available. In order of increasing difficulty:
  1. System File Checker (sfc.exe) [Win98 only]
  2. Windows explorer [Win98 only]
  3. WinZip v7 & above [all Windows versions]
  4. manual extraction (extract.exe) [all Windows versions] (see also Q129505)

1 System File Checker (sfc.exe) [Win98 only] The default is to back up the original file - the Settings.. button gives access to check or change this.

2 Windows explorer [Win98 only]
3 WinZip v7 & above [all Windows versions]

4 Manual Extraction (extract.exe) [all Windows versions]

See also Q129505

The location of key system files, both on disc & within the CAB files, is below. The precise version of Windows can be found from System Properties.

Thanks to Adelaide G. Zirkle for passing on research done on Windows Me for a friend, and now of benefit for us all.

System Files HD Location
File Location
modemui.dll   Windows\System
pppmac.vxd   Windows\System
rasapi32.dll   Windows\System
smmscrpt.dll   Windows\System
umdm16.dll   Windows\System
unimdm.tsp   Windows\System
winsock.dll   Windows
wsock.vxd   Windows\System
wsock32.dll   Windows\System

System Files - Size & Location in Windows 98 CAB Files
Version File Size Date & Time Location File List
Windows Me modemui.dll 38,048 8 Jun 00 17:00 Win_12.cab 272612
pppmac.vxd 148,045 Win_20.cab 272639
rasapi32.dll 249,856 Win_14.cab 272634
smmscrpt.dll 61,440
umdm16.dll 2,112 Win_15.cab
unimdm.tsp 59,744 Win_19.cab 272639
winsock.dll 21,520 Precopy1.cab 272253
wsock32.dll 36,864
CD-ROM
Windows 98 SE		 modemui.dll 38,032 23 Apr 99 22:22 Win98\win98_62.cab Q238811
pppmac.vxd 235,585 Win98\net9.cab Q238668
rasapi32.dll 217,088 Win98\win98_40.cab Q238767
smmscrpt.dll 61,440 Win98\win98_41.cab
umdm16.dll 2,096 Win98\win98_64.cab Q238813
unimdm.tsp 47,200 Win98\win98_69.cab
winsock.dll 21,504 Win98\Precopy1.cab Q238664
wsock32.dll 40,960
CD-ROM
4.10.1998
(also OEM)		 modemui.dll 38,032 01 May 98 20:01 Win98\win98_55.cab Q188438
pppmac.vxd 230,961 Win98\net10.cab Q188429
rasapi32.dll 196,608 Win98\win98_37.cab Q188433
smmscrpt.dll 61,440 Win98\win98_39.cab Q188434
umdm16.dll 2,096 Win98\win98_57.cab Q188438
unimdm.tsp 43,616 Win98\win98_63.cab Q188439
winsock.dll 21,504 Win98\Precopy1.cab Q188428
wsock32.dll 40,960
DMF Floppy Discs
4.10.1998		 modemui.dll ? 01 May 98 20:01 ? ?
pppmac.vxd 230,961 Disk6\net9.cab Q191055
rasapi32.dll 196,608 Disk27\win98_32.cab Q191057
smmscrpt.dll 61,440 Disk28\win98_33.cab
umdm16.dll 2,096 Disk29\win98_34.cab Q191057
unimdm.tsp 43,616 Disk34\win98_39.cab Q191058
winsock.dll 21,504 Disk 2\precopy2.cab Q191054
wsock32.dll 40,960

System Files - Size & Location in Windows 95 CAB Files
Version File Size Date & Time Location File List
DUN 1.3 Upgrade modemui.dll n/a Q194477
pppmac.vxd 235,073 14 Aug 98 16:57 msdun.cab
rasapi32.dll 198,656
smmscrpt.dll 46,080
pppmac.vxd n/a 14 Aug 98 16:56 dunosr2.cab
rasapi32.dll 174,080
smmscrpt.dll n/a
pppmac.vxd 235,073 14 Aug 98 16:57 dun95.cab
rasapi32.dll 198,656
smmscrpt.dll 46,080
umdm16.dll n/a
unimdm.tsp
winsock.dll 2,368 14 Aug 98 16:12 IPOSR2.cab
wsock32.dll 66,560
winsock.dll 42,080 14 Aug 98 16:11 IPWIN95.cab
wsock32.dll 66,560
winsock.dll 42,480 14 Aug 98 16:12 MSTCPIP.cab
wsock32.dll 66,560
wsock.vxd n/a
WinSock 2.0 Upgrade modemui.dll n/a n/a Q182381
pppmac.vxd
rasapi32.dll
smmscrpt.dll
umdm16.dll
unimdm.tsp
winsock.dll 19,040 06 Jun 97 14:46
wsock32.dll 35,328
wsock.vxd 15,523
wsock2.vxd 23,733
OEM Service Pack 2
CD-ROM
4.00.950 B		 modemui.dll 36,144 24 Aug 96 11:11 Win95\Win95_11.cab Q158210
pppmac.vxd 135,288 Win95\Win95_16.cab Q158209
rasapi32.dll 174,080
smmscrpt.dll 46,080 Win95\Win95_17.cab
umdm16.dll 2,096 Win95\win95_04.cab Q158194
unimdm.tsp 42,144
winsock.dll 42,368 Win95\Win95_18.cab Q158193
wsock32.dll 66,560 Win95\Win95_18.cab
wsock.vxd 15,523 Win95\Win95_19.cab
Service Pack 1
CD-ROM 10 Sep 96
4.00.950 A		 modemui.dll 36,144 31 Dec 95 09:50 Drivers\Modem\Unimodv Q150440
rasapi32.dll n/a Q150436
smmscrpt.dll 47,616 31 Dec 95 09:50 Admin\Componts\Dscript\Netsetup
umdm16.dll 2,096 Drivers\Modem\Unimodv Q150440
unimdm.tsp 42,144
winsock.dll n/a
wsock32.dll 66,560 31 Dec 95 09:50 Drivers\Modem\Unimodv
wsock.vxd 15,522
UniModem V
unimodv.exe		 modemui.dll 36,144 16 Nov 95 01:00 n/a Q183317
rasapi32.dll n/a
smmscrpt.dll
umdm16.dll 2,096 16 Nov 95 01:00
unimdm.tsp 42,144
winsock.dll n/a
wsock32.dll 66,560 16 Nov 95 01:00
wsock.vxd 15,522
CD-ROM
4.00.950		 modemui.dll 27,504 11 Jul 95 09:50 Win95\Win95_07.cab Q135537
rasapi32.dll 147,456 Win95\Win95_10.cab Q135538
smmscrpt.dll n/a
umdm16.dll 1,952 11 Jul 95 09:50 Win95\Win95_03.cab Q135540
unimdm.tsp 28,896
winsock.dll 42,080 Win95\Win95_11.cab Q135539
wsock32.dll 66,560 Win95\Win95_11.cab
wsock.vxd 15,522 Win95\Win95_12.cab
DMF Floppy Discs
4.00.950		 modemui.dll 27,504 11 Jul 95 09:50 Disk 08\Win95_08.cab Q135545
rasapi32.dll 147,456 Disk 10\Win95_10.cab Q135544
smmscrpt.dll n/a
umdm16.dll 1,952 11 Jul 95 09:50 Disk 03\Win95_03.cab Q135542
unimdm.tsp 28,896
winsock.dll 42,080 Disk 12\Win95_12.cab Q135543
wsock32.dll 66,560 Disk 12\Win95_12.cab
wsock.vxd 15,522 Disk 13\Win95_13.cab
Non-DMF Floppy Discs
4.00.950		 modemui.dll 27,504 11 Jul 95 09:50 Disk 12\Win95_12.cab Q143327
rasapi32.dll 147,456 Disk 16\Win95_16.cab Q141603
smmscrpt.dll n/a
umdm16.dll 1,952 11 Jul 95 09:50 Disk 05\Win95_05.cab Q143326
unimdm.tsp 28,896
winsock.dll 42,080 Disk 19\Win95_19.cab Q141603
wsock32.dll 66,560 Disk 19\Win95_19.cab
wsock.vxd 15,522 Disk 20\Win95_20.cab

Microsoft Support Articles listing File Contents
CAB Collection List 1/8 List 2/9 List 3/10 List 4/11 List 5/12 List 6/13 List 7/14
Windows Me 272253 272606 272608 272610 272612 272634 272636
272638 272639 272640
Windows 98 SE CD-ROM Q238664 Q238666 Q238668 Q238728 Q238729 Q238730 Q238749
Q238767 Q238771 Q238775 Q238809 Q238811 Q238813 Q239011
Windows 98 CD-ROM
4.10.1998
(also OEM)		 Q188428 Q188429 Q188430 Q188431 Q188432 Q188433 Q188434
Q188435 Q188436 Q188437 Q188438 Q188439 Q188440 Q189503
Windows 98 DMF Floppy Discs
4.10.1998		 Q191054 Q191055 Q191056 Q191057 Q191059 Q191058
Windows 95 DUN 1.3 Upgrade Q194477
Windows 95 Sockets 2.0 Update
ws2setup.exe		 Q182381 Q177719
Windows 95 OEM Service Pack 2 CD-ROM
4.00.950 B		 Q158190 Q158194 Q158210 Q158209 Q158193 Q158191
Windows 95 Service Pack 1 CD-ROM
4.00.950 A
10 Sep 96		 Q150436 Q150444 Q150441 Q150440 Q150437
UniModem V
unimodv.exe		 Q183317
MS Plus! CD-ROM Q137818 Q137817
Windows 95 CD-ROM
4.00.950		 Q135540 Q135537 Q135538 Q135539 Q135541
Windows 95 DMF Floppy Discs
4.00.950		 Q135542 Q135543 Q135544 Q135545
Windows 95 Non-DMF Floppy Discs
4.00.950		 Q141603 Q143326 Q143327