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i'm having troubles with installing Dosbox.....i downloaded it...but i can't start it....there is message like i cannot start it or something like that

[Strobe]

maybe you could quote the exact content of the error message?
otherwise it will be quiet hard to help you...

also, you could check out this link.

[Eagle of Fire]

You might also try to redownload it to be sure. Your archive file might have been broken in the transfer.

Also, you should use WinRar to dearchive it. If you are using WinZip you might encounter a compatibility problem.