"I downloaded an application DfuSe, and tried to install it... and found that it was a 64 bit application... 800Mc/s Athlon processor, running 32 bit architecture..." Will this help?: https://my.st.com/public/STe2ecommunities/mcu/Lists/ARM%20CortexM3%20STM32/Flat.aspx?RootFolder=%2Fpublic%2FSTe2ecommunities%2Fmcu%2FLists%2FARM%20CortexM3%20STM32%2FDFuSe%20applet%20on%20Linux&FolderCTID=0x01200200770978C69A1141439FE559EB459D758000626BE2B829C32145B9EB5739142DC17E¤tviews=609 This is a good reminder to be aware of the experimental WINE64, speaking of 64 bit. It doesn't particularly help you in this case, but for future reference, if you try to run this 64 bit program in 64 bit Linux on a 64 bit machine, you might be able to run this program in WINE64. I contemplated whether or not it would be worth posting a long-winded deal going into every possible combination of (32 bit or 64 bit of each of the following): end (Windows) application, WINE, Linux, and processor; and say which combinations are possible, and which aren't, and why - just to iron out all the wrinkles. I determined that if I put in PasteBin, I couldn't possibly get anyone P.O.ed, so why not? And I never used PasteBin before, so it was good for me to get an account and "practice". Here it is: http://pastebin.com/Xu76cb8z . Someone might be glad it's there. I talk about processor emulators and bitage conflictions and bitage non-conflictions. Here's the meat and potato sources I reference amongst the long-windedness: http://www.thefreecountry.com/emulators/pc.shtml http://www.debian-administration.org/articles/534 (and the first one in my reply that's really long and ends in "=609") You sound like you know what you are doing, but Wikipedia/ something else search your processor's hardware name to make sure it really is only 32 bit. (see paragraph 26...I was duped into thinking my processor was 32 bit when it was actually 64 bit, because I was booted into a 32 bit OS, and it reports itself as such for compatibility.) I couldn't get a definitive answer from a semi-quick searching, but since it's on Wikipedia's "List of AMD Athlon microprocessors" and not on Wikipedia's "List of AMD Athlon 64 microprocessors," it's probably 32 bit. Cpu-world didn't say either. Cheers, Jake -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://www.winehq.org/pipermail/wine-users/attachments/20110513/f85af2f3/attachment.htm>