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Hi May be my question seems to be Irrelevant to this forum but your answer can help me. I am making a file system it is working well in case of files but i donot know how to store directies in it. I searched a lot. These things i know from research 1. Directories are saved in a similar way as the file are saved in the Root Directory Entry with a on directory bit in the attribute field. 2. There is "." and ".." pointers .pointer point to it self and ..pointer points to its parent. but where they are saved in the name field???. Where the parent address is saved (if it is saved in the starting cluster area then where the start of the directory is saved as i read it that subdirectory take at least one cluster) thanxs Regards Farhan Arshad
FAT filesystem specification is available online: http://staff.washington.edu/dittrich/misc/fatgen103.pdf Not sure about IP rights/patents/etc. So use it at your own risk and don't be surprised if an army of Microsoft lawyers knock on your door :-) There are also many other filesystems, just look up "linux file systems". You can borrow some ideas from them as well. - mike
From what I've read in the past, Microsoft don't really care if you want to implement something that *reads* a FAT32 filesystem - or even *writes* to one... ...but if you want to format a blank device to contain a FAT32 filesystem, then you'd better have your cheque book ready... Steve