If, as you said, most DOS games want 2.22 or 2.23, then this is more important:
Changes from Version 2.21 to 2.22
- MSCDEX now loads into UMA. If there is enough memory available, MSCDEX version 2.21 and ear […]
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Changes from Version 2.21 to 2.22
- MSCDEX now loads into UMA. If there is enough memory available, MSCDEX version 2.21 and earlier can load into upper memory. MSCDEX version 2.21 and earlier require the load size of MSCDEX (which varies for different configurations) plus 48K of memory to load. The extra 48K of memory is added to ensure there is enough memory to load COMMAND.COM.
- MSCDEX version 2.22 checks to see if the driver is being loaded above 640K. If it is, MSCDEX does not add 48K to the initialization load size because it does not need to be concerned with the transient portion of COMMAND.COM.
- MSCDEX is no longer version dependent. If you are using MS-DOS 5.0 or 6.0, earlier version of MSCDEX require that you use SETVER.EXE to tell MSCDEX the MS-DOS version is 4.0.
- The /V switch now reports accurate memory statistics. Earlier versions of MSCDEX were not accurate.
Changes from Version 2.22 to 2.23
- MSCDEX version 2.22 erroneously assumes that files in a directory on a CD-ROM are sorted (collated by ASCII code value). Performing a file search could result in missed files if the files on the CD-ROM are not sorted. MSCDEX version 2.23 does not assume that the files are sorted but instead searches the entire directory and does not return a "File not found" error message unless the file does not actually exist.
- MSCDEX version 2.23 allows files and directory names to begin with an exclamation point (!), allowing EISA configuration files to be shipped on CD-ROMs.
BTW, here's my list of MSCDEX.EXE (not MSCDEXNT.EXE) replacements again.
MSCDEX Replacements
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1.) Artisoft - CDLANX - Workstation/server replacement for MSCDEX. File size: 2.68 kb; File date: 03-09-92. Download it at http://ftp.artisoft.com/artisoft/public/cdlanx.zip
2.) Artisoft - MXSUB - MSCDEX replacement program for workstations. File size: 4.40 kb; File date: 06-20-90. Download it at ftp://ftp.artisoft.com/artisoft/public/mxsub.zip
3.) Caldera/Novell - NWCDEX (Novell DOS 7?) - The main problem is that this driver takes up about 60k and takes a large amount of memory to install. Nevertheless, This is an incredible mscdex.exe replacement. As of the 11/16/94 update returns the same canonical path as MSCDEX; earlier revisions returned "Cdex. D:\path", where "D" is the CD-ROM drive letter. [url]http://www.caldera.com,[/url] http://jason-n3xt.org/dos/DOWNLOAD/NWCDEX.ZIP
4.) Corel - CORELCDX - returns canonical names of the form "\\D.\A.\path", where "D" is the CD-ROM drive letter and "A" appears to indicate the first physical CD-ROM drive.
5.) Microsoft - Windows95 (MSCDEX-replacement VxD - CDFS.VXD?) - returns "D:\path", even though the MS-DOS 7.00 MSCDEX behaves identically to older versions
6.) Sam Houston State University - SHSUCD - v1.4b - a FREE CD-ROM client/server, it can store CD images on a hard disk, and includes a TINY MSCDEX replacement that can talk to the drive across the network as though it were attached with MSCDEX. Supposedly works with DOS, Win, Win95, NT, and OS/2, and the server can run in an NT DOS VDM or on a standalone box. It uses only 11K RAM resident and can be unloaded. You can find it on the SIMTEL archive at ftp.cdrom.com in the simtelnet/cdrom directory, or at its homepage at http://www.shsu.edu/~csc_jhm/
7.) ??????? - MSCDEX - This driver takes up about 20-30k, which is about the same as the Microsoft version. Not recommended for use with Windows (98?) - Windows doesn't seem to enjoy accessing the CD-ROM drive when using it; it's quite a confusing problem and maybe it's only relative to certain systems. Download it at http://jason-n3xt.org/dos/DOWNLOAD/MSCDEX.ZIP
8.) ??????? - SUPERCDX - It is primarily designed to run multiple CD ROM drives in a machine; however, it boasts a speed improvement over MSCDEX. The people who make it had a BBS at one time: (512) 326-2754. More information at http://www.google.com/search?q=cache:gaM4ee83 … cement%22&hl=en
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