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DOS启动盘 & LOGO技术（启动盘室） » [Discussion] A question about compressing a custom LOGO with DBLSPACE

Floor1　Wengier	Posted 2003-06-16 00:00
系统支持　Posts 10,521　Credits 27,736
Today I happened to get an 80MB small hard disk. It already had MS-DOS 6.20 and all its various programs installed, and the hard disk had already been compressed with DBLSPACE. I was very happy, and immediately used this DBLSPACE to compress an entire floppy disk (the floppy disk contained only one custom startup LOGO image file, LOGO.SYS, size 129,147 bytes), and got a DBLSPACE.000 file (that is, a floppy disk image compressed with DBLSPACE). I ask all the experts here to help me extract the compressed LOGO from this image file, so it can be put into the IO.SYS of MS-DOS 7.x to make a custom startup LOGO screen. Thanks! I am now uploading this image file: Open attachment

Floor2　Wengier	Posted 2003-06-16 00:00
系统支持　Posts 10,521　Credits 27,736
However, from what I observed, the LOGO.SYS on the floppy disk was not compressed into this area (you can tell from the extracted full floppy image). So I still have no way to separate it out... Everyone is welcome to suggest a better method!

Floor3　Roy	Posted 2003-06-16 00:00
管理员　Posts 1,633　Credits 4,869
Mine was compressed, but it is scattered aroundOpen attachment

Floor4　Wengier	Posted 2003-06-16 00:00
系统支持　Posts 10,521　Credits 27,736
I don't see anything useful in it...

Floor5　playboy2925	Posted 2003-06-21 00:00
银牌会员　Posts 393　Credits 1,275
How do you use DBLSPACE to compress files??? I couldn't find any way to do it. Give me a compressed io.sys and logo.sys.