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I create a password-protected self-extracting archive using WinRAR. When I open the archive the executable asks me for a password. How can I change "Enter password for the encrypted file." to a custom prompt?

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I don't think it is possible: most parts of the SFX archives can be customized, but for this part there is simply no command or interface available to change it. You can use the -p switch when calling the executable for suppressing the dialog (e.g. compressed_file.exe -pmypass), but that would defeat the purpose of the password protection.

If you do want password protection, you would I guess need some kind of installer creation software. With e.g. the Nullsoft Scriptable Install System you can configure it similarly to an SFX archive, plus it allows for custom user prompts with which you can mimic the password protection.

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I would like to change the self-extracting executable created by WinRAR. – Norbert Willhelm Oct 20 '11 at 17:04
@NorbertWillhelm: I know, but again, as far as I know I don't think it is possible. If suppressing the password isn't an option, then I see no other option next to looking into different solutions. – jro Oct 21 '11 at 6:22
I up-voted your answer but I won't accept this since I'm waiting for another answer. – Norbert Willhelm Oct 21 '11 at 7:45
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