windows file sizes

[Greg Schwartz]

If you right-click on a file in Windows (i'm using Win98) and go down to the "Properties" tab, a dialog box appears with one of the pieces of information in the dialog box being the file's size.
I did this for an archive file and received the following file size information:
Size: 23.9KB (24,565 bytes), 24,567 bytes used
Does anyone know what those three values represent and which is the actual file size. It seemed strange that the KB and byte values didn't match up.
Thanks for your help!
Greg

[Marilyn de Queiroz]

Size: 23.9KB (24,565 bytes), 24,567 bytes used

KB is not bytes/1000 but bytes/1024 (You'll probably recognize 1024 as a multiple of 16). I don't know about the two extra "bytes used", maybe a file header or something?

[Greg Schwartz]

I appreciate your reply. I forgot that it was divided by 1024 instead of 1000.
Thanks for your help.

[Manish Hatwalne]

Besides, if you use Win NT (or 2k), the cluster size will be 4KB, so the size file actually occupies on the disk will be in multiples of 4 KB.
- Manish