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中国DOS联盟论坛 » DOS学习入门 & 精彩文章（教学室） » What requirements does DOS have for io.sys;msdos.sys at startup? View 1,560　Replies 3

Original Poster Posted 2003-05-29 00:00　·　中国江苏徐州教育网

yieme

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When DOS boots, are there any requirements on the location of the io.sys;msdos.sys files?
Do they have to be before some amount of (?) MB space?

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Floor 2 Posted 2003-05-29 00:00　·　中国河北石家庄联通

LanE

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I seem to remember that
early on they were required to be in specific locations, occupying specific entries in the FAT table (seems like the first and second ones maybe); later the requirement was relaxed, and only specific FAT table entries were required, I think.

Floor 3 Posted 2003-05-30 00:00　·　中国江苏无锡电信

wglwx

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In DOS 6.22 and earlier versions, there are strict requirements.
In DOS 7.0 and later versions, there are no requirements; you can delete them freely and then copy them back into a different location.

Floor 4 Posted 2003-05-30 00:00　·　中国江苏徐州教育网

yieme

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Thanks

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