Troubleshooting Video Codecs in Windows 95

This article was previously published under Q142946
This article has been archived. It is offered "as is" and will no longer be updated.
SUMMARY
This article lists troubleshooting steps to help you troubleshoot problemswith video codecs in Windows 95. A video codec is an algorithm used tocompress and decompress video files. The following problems are addressedin this article:
  • Missing codecs
  • Damaged codecs
  • Conflicts between 16-bit and 32-bit codecs
MORE INFORMATION

Missing Codecs

Windows 95 includes 32-bit versions of several common video codecs. These32-bit codecs are installed by default when you install Windows 95, andare used by multimedia programs even if a 16-bit version of the same codecis available.

To verify that the 32-bit codecs included with Windows 95 are installed,follow these steps:
  1. In Control Panel, double-click Add/Remove Programs.
  2. Click the Windows Setup tab.
  3. Click Multimedia, and then click Details.
  4. Verify that the Video Compression check box is selected. If it is not selected, click the check box to select it, and then click OK.
If you still cannot play a particular video file after verifying that the32-bit codecs included with Windows 95 are installed, the video file mayhave been compressed using a third-party codec that is not included withWindows 95. To determine which codec was used to compress the file, usethe right mouse button to click the file in Windows Explorer, clickProperties on the menu that appears, and then click the Details tab. TheVideo Format line should contain information about the type of compressionused to compress the file.

If the codec used to compress the file is not one of the codecs includedwith Windows 95, contact the manufacturer of the codec for informationabout troubleshooting the problem. The following 32-bit video codecs areincluded with Windows 95:
  • Intel Indeo R3.1 (IV31)
  • Intel Indeo R3.2 (IV32)
  • Supermatch Cinepak
  • Microsoft RLE (MS-RLE)
  • Microsoft Video 1 (MS-CRAM)
If the codec used to compress the file is one of the codecs included withWindows 95, you can verify that the particular codec is installed byfollowing these steps:
  1. In Control Panel, double-click Multimedia.
  2. Click the Advanced tab.
  3. Double-click the Video Compression Codecs branch to expand it.
NOTE: If you have installed the 16-bit version of a 32-bit codec that isincluded with Windows 95, the 16-bit codec appears on the Advanced tab ifthe 32-bit version is not installed or has been disabled.

If the codec used to compress the file is not listed, use the followingsteps to install that codec:
  1. In Control Panel, double-click Add New Hardware.
  2. Click Next, click No, and then click Next.
  3. Click Sound, Video, And Game Controllers, and then click Next.
  4. In the Manufacturers box, click the appropriate item:

    • for RLE and Video 1, click Microsoft Video Codecs
    • for Cinepak, click SuperMatch
    • for R3.1 or R3.2, click Intel
  5. Click the appropriate codec in the Models box, click Next, and then click Finish. If you are prompted to restart Windows 95, do so.

Damaged Codecs

If you still cannot play a particular video file after verifying that thecodec used to compress the file is installed, the codec may be damaged. Toensure that you are not using a damaged codec, follow these steps toreinstall a codec:
  1. In Control Panel, double-click Multimedia.
  2. On the Advanced tab, double-click the Video Compression Codecs branch to expand it.
  3. Click the codec used to compress the file you are trying to play, click Properties, click Remove, and then click Yes.
  4. Restart your computer.
  5. In Control Panel, double-click Add New Hardware.
  6. Click Next, click No, and then click Next.
  7. Click Sound, Video, And Game Controllers, and then click Next.
  8. In the Manufacturers box, click the appropriate item:

    • for RLE and Video 1, click Microsoft Video Codecs
    • for Cinepak, click SuperMatch
    • for R3.1 or R3.2, click Intel
  9. Click the appropriate codec in the Models box, click Next, and then click Finish. If you are prompted to restart Windows 95, do so.
NOTE: You cannot disable a video codec using the Windows 95 graphical userinterface (GUI). You can remove a video codec as described above, but youcannot disable a video codec using the Windows 95 GUI. For informationabout manually disabling a video codec, see the "Conflicts Between 16-Bitand 32-Bit Codecs" section of this article.

If you still cannot play the file after reinstalling the video codec, youmay need to remove all the Windows 95 multimedia files, and then reinstallthem. To do so, follow these steps:
  1. In Control Panel, double-click Add/Remove Programs.
  2. Click the Windows Setup tab.
  3. Click the Multimedia check box to clear it, and then click OK.
  4. Repeat steps 1-2.
  5. Click the Multimedia check box to select it, and then click OK.

Conflicts Between 16-Bit and 32-Bit Codecs

If the 32-bit version of a video codec that Windows 95 needs to play aparticular video file is not installed or is disabled, Windows 95 uses the16-bit version of the codec if it is available. If the 32-bit version ofthe codec is installed and is not disabled, Windows 95 uses the 32-bitversion by default. However, you may experience problems when both the 16-bit and 32-bit versions of a particular codec are installed.

The following 16-bit video codecs are installed by the run-time version ofMicrosoft Video for Windows and by many other Microsoft multimediaprograms:
  • Intel Indeo R3.1 (IV31)
  • Intel Indeo R3.2 (IV32)
  • Intel Indeo R2.1/RAW (RT21)
  • Intel Indeo R2.1/RAW (YVU9)
  • Supermatch Cinepak
  • Microsoft RLE (MS-RLE)
  • Microsoft Video 1 (MS-CRAM)
These 16-bit codecs appear in the [Drivers] section of the System.inifile, but do not appear when you double-click the Multimedia icon inControl Panel, click the Advanced tab, and then expand the VideoCompression Codecs branch. To disable a 16-bit codec, disable or removethe line in the System.ini file that corresponds to that codec. To disablea line, place a semicolon (;) at the beginning of the line. Afterdisabling the 16-bit version of the codec, reinstall the 32-bit versionusing the steps described in the "Damaged Codecs" section of this article.

The following lines in the System.ini file correspond to the 16-bit videocodecs that are installed by Microsoft Video for Windows version 1.1d:
   [drivers]   vidc.rt21=indeov.drv   vidc.yvu9=indeov.drv   vidc.msvc=msvidc.drv   vidc.iv31=indeov.drv   vidc.mrle=msrle.drv				
The following lines in the System.ini file correspond to the 16-bit videocodecs that are installed by Microsoft Video for Windows version 1.1e:
   [drivers]   vidc.msvc=msvidc.drv   vidc.rt21=indeov.drv   vidc.iv32=ir32.dll   vidc.iv31=ir32.dll   vidc.mrle=msrle.drv   vidc.yvu9=ir21_r.dll				
To disable a 32-bit codec, disable or remove the line in the System.inifile that corresponds to that codec. To disable a line, place a semicolon(;) at the beginning of the line. The following lines in the [Drivers32]section of the System.ini file correspond to the 32-bit video codecs thatare installed by Windows 95:
   [drivers32]   vidc.cvid=iccvid.dll   vidc.iv31=ir32_32.dll   vidc.iv32=ir32_32.dll   vidc.msvc=msvidc32.dll   vidc.mrle=msrle32.dll				
If you are using a 16-bit multimedia program in Windows 95, you may wantto disable the 32-bit version of a particular codec instead of disablingthe 16-bit version.
ir31 ir32
Properties

Article ID: 142946 - Last Review: 12/04/2015 13:06:23 - Revision: 1.1

Microsoft Windows 95

  • kbnosurvey kbarchive kbmm KB142946
Feedback