Recently I had a problem importing data from a 10-years-old set of DBF tables. All was fine until it came to reading texts with polish diacritic marks. It worked fine on 9 out of 10 machines, all with identical configurations (or at least I had hoped they are identical and couldn’t find any differences - Windows 7 x64 PL, .NET 4.5.2, the same regional options). On that single one all special letters got converted into some eye-hurting characters and looked purely wrong.
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