MS-DOS 6.22 StepUp Appears to Have Duplicate Files (121320)



The information in this article applies to:
    Microsoft MS-DOS operating system 6.22

This article was previously published under Q121320

SUMMARY

Some files included with MS-DOS 6.22 StepUp appear to be duplicated, having the same filenames as other files, but with filename extensions that include an underscore (_), caret (^), or number sign (#).

MORE INFORMATION

MS-DOS 6.22 StepUp contains two types of binary patch files:
    Files with the filename extension .XX#. These files contain MS-DOS 6.0 checksums to patch MS-DOS 6.0 files to the MS-DOS 6.22 level. (Examples include XCOPY.EX# and SHARE.EX#.)
    Files with the filename extension .XX^. These files contain MS-DOS 6.2 (or MS-DOS 6.0/6.2 upgraded to MS-DOS 6.21) checksums to patch appropriate files to the MS-DOS 6.22 level. (Examples include XCOPY.EX^ and SHARE.EX^.)
Files with the filename extension .XX_ are standard compressed files that are expanded during the setup process. (Examples include DELOLDOS.EX_ and COUNTRY.TX_.)

Modification Type: Major Last Reviewed: 11/23/1999
Keywords: KB121320