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"Invalid size or check sum of file" error in zip file

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  • #16
    This bug should be fixed in Beyond Compare 4.1 beta.

    Beta download page: http://www.scootersoftware.com/beta
    Chris K Scooter Software

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    • #17
      Hi Chris,

      Great to hear. I've downloaded the beta but so far I've not had a chance to try alongside the standard release on my main system (where this problem seem to occur much less.) I may need to go back to and reinstall on my older system where it used to happen much more readily. Or really sandbag my main system to try to stack the deck.

      But again, thanks for taking a swing at it for us.

      -Greg

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      • #18
        Hi All,

        This build definitely improves handling of ZIP files. I do see that that fixes a number of similar errors that I would lump in with the "invalid size or checksum of file" error. That's awesome!

        Because of the system requirements for the BC4.1 Beta, I can't test this in the main environment where I used to very frequently see the invalid checksum error. So I'm still trying to exercise that part of the fix...

        -Greg

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        • #19
          Thanks for the feedback. Once 4.1 is fully released would you be able to upgrade? So far, the beta is going fairly smoothly.
          Aaron P Scooter Software

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          • #20
            Hi Aaron,

            Looking forward to BC4.1!

            The system where I see the worst problem is a XP SP2 VM running a legacy dev environment that unfortunately (for reasons I won't clutter this forum with) is frozen at that level. (At least it's an offline environment, isolated from the net!) So with the SP3 requirement, I'm not sure I'll be able to make the upgrade there.

            Curious, as I type that, I realize that SP3 was a requirement for BC4, wasn't it? While "not supported" is it possible that a portable install is more forgiving there? I'm now wondering how I got it there in the first place.

            Greg

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            • #21
              BC 4.0.0 allowed installs on unsupported OS's, but we found a bug where some OS's (like 2000) would then not allow an uninstall, and in 2000's case wouldn't boot. 4.0.1's installer now prevents installs to older OS's to prevent this from happening in the future.

              A Portable Install is a workaround, as it can be copied to your frozen machine and, if it needs to be uninstalled, you can delete the single-directory install. It isn't supported, but might work for you.
              Aaron P Scooter Software

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              • #22
                Not sure you required further verification but I have had the opportunity to test more closely to the original issue. In both cases I agree the "Invalid size or checksum of file" and various similar errors are addressed in the 4.1 Beta.

                1) Using the portable install method discussed above to run on the "frozen pre-SP2 XP" system, when the previous version fails to sync into a zip folder, BC4.1 Beta succeeds.

                2) Running v4.0.7, I've similarly been able to more readily create the failure on my main system (Win 7) where I previously saw this type of error only rarely. Running v4.1 Beta, the error does not occur.

                Great work and thanks for the support!

                -Greg

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