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General Category => Site Feedback => Topic started by: Guest on October 13, 2004, 07:07:10 PM

Title: undocumented option in cdimage.exe
Post by: Guest on October 13, 2004, 07:07:10 PM

Hi

there's an undocumented option -xx (double x) in cdimage.exe program.
-xx an extension of -x
When used with -xx cdimage.exe generates checksum for image header
Usually this DWORD resides at 0x8FFC of ISO-image file and makes CRC32 of first 0x9000 bytes to be equal 0xFFFFFFFF. But the position of this checksum may differ

Microsoft use this option when creating iso-images so this checksum's present on it's isos

Title: undocumented option in cdimage.exe
Post by: Guest on October 13, 2004, 07:16:55 PM

this is for http://www.tech-hints.com/xp.html (http://\"http://www.tech-hints.com/xp.html\") page