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Thread: .sis vs .sisx

  1. #1
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    Default .sis vs .sisx

    What's the difference between the two file types?

    When I sign with OPDA SignTool, it either maintains or changes the file to a .sis file..
    When I sign with FreeSigner, it either maintains or changes the file to a .sisx file..

    Is there even any difference between the two file types?

  2. #2
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    Default Re: .sis vs .sisx

    As i know, sis is unsigned application, sisx is signed application, correct me if i'm wrong

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    Default Re: .sis vs .sisx

    sisx only for symbian 9 & above. sis both for sumbian 8.1 & below + symbian 9 & above.
    u can install both sis & sisx in sumbian 9, but sisx never be installed in symbian 8.
    signed/unsigned -- this is not related to sis/sisx.

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    Default Re: .sis vs .sisx

    it was supposed to be a naming convention which was never really got properly implemented.

    sis is supposed to be unsigned

    sisx is supposed to be signed.

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    Default Re: .sis vs .sisx

    oreo27 is right. sisx means signed package

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    Default Re: .sis vs .sisx

    Well then practically no difference right? Since Opda SignTool still maintains(Or even makes the file into!!) a .sis file

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    Default Re: .sis vs .sisx

    i dont think those names related to signed and unsigned

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    Default Re: .sis vs .sisx

    Hmmm.. Go here:http://en.m.wikipedia.org/wiki/SIS_(file_format)?wasRedirected=true

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    Default Re: .sis vs .sisx

    Actually, it is a bit more complicated than that.

    With Symbian operating system version 9 (and later), the installation file format was changed, as well as the actual executable/binary program file formats). And S60 3rd Edition based phones are based on Symbian OS v9.1 (and later).

    Symbian also invented a new file extension for digitally signed installation files, .sisx.

    S60 3rd Ed. also requires mandatory signing of the installation files.

    However, the actual file extension does not determine whether a file is really signed or unsigned. And unfortunately Symbian's tools when a file is signed, they leave them with the .sis extension, even if the recommendation is that signed files use .sisx and that is why you see both.

    Main thing, regardless of the extension being .sis or .sisx, you have to make sure that it is for S60 3rd Edition. As there are also earlier S60 versions using earlier Symbian OS versions, and those files are also .sis files, but will not install/work on S60 3rd Ed. devices.

    As Symbian changed the file format, they really should have also changed the file extension and made it mandatory. That would have saved people from a lot of confusion.

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