Problem: Avisynth and Windows 10 unicode filenames support

I have problem with non-ANSI filenames and AVISynth (latest, 2.60, 2016-05-31) In attached test-unicode-avisynth.zip simple "Тест.avs" script with "Version()". But Code:

Yes, I am just trying to work with Russian filenames, I did not care specifycally about Unicode or ANSI encoding. But on Win7 same NTFS filenames (probably in Windows-1251) works OK with AVISynth, on Win10 Avisynth refused to open it.

If you don't want to rename your files, passing the short filename should work. E.g. for %f in ("Тест.avs") do echo %~sf OR for %f in ("Тест.avs") do ffmpeg -i %~sf Heh... this was one of the workarounds that was needed in Java too...