effem

Hi, I was curious on how the U3 disk is really organized and how updating the iso filesystem actually works. I've been playing around with tools like winhex and unix dd but I didn't manage to find the right info. Of course I know about Universal Customizer 1.0.0.8 (and I used it to my pleaser). However I wanted to make an app that would allow retrieving a new iso from the web and program it, and Universal Customizer 1.0.0.8 is not really useful to automate this. Any info is greatly appreciated!

Ehm. I think this is just a change in settings to increase the performance. That is not what I want. I want to be able to sync all files, flush them to the disk and unmount the disk (or eject or remove whatever word you want to use) Just like you do with the tray icon (but I want to do it from software). And when I pull the stick I do not want to get an error message about removing a drive without removing it. The U3 control center contains such a function, but I can't find how to do it from my program. Closest I came was this: http://www.codeproject.com/system/RemoveDriveByLetter.asp However that does not work if you run your exe from the iso. A copy would help, but I was hoping for a more elegant solution.

Hm. Read the whole thread. That one is about performance. I couldn't find any info on safe removal. Am I overlooking something here? If so, please post the relevant snippet here (and I'll promise I'll have my glasses checked).

Maybe I misphrased myself. I want to put the usb subsystem in such a state that I can remove the disk without XP complaining about it (and that all files are properly flushed etc). Basically I want to do in software what I normally do with an USB flash disk with the tray icon. In the U3 launchpad this function is called "eject".

Hi, Got my U3 disk yesterday, and managed to get my own image on it, thanks to this site. Thanks alot for that! However, I am encountering one problem. I want to eject the usb stick from within the program that I am starting. However apparently when the program is launched from the CD part, it still keeps the disk open and it cannot be ejected. I do have code to eject the disk and that runs nicely if I run the prog from hard disk, but not from USB. I noticed though that the U3 software has an eject button and that they apparently do manage. Any idea what would be the best way to achieve this (preferably without installing anything on the local PC). Thanks, FM.