I try to use Unicode characters in file names. It is possible to use them, if I copy the character into the clip board and paste it into the file name. But I did not manage to enter them directly via the keyboard.
I enabled the hex numpad registry key:
[HKEY_CURRENT_USER\Control Panel\Input Method] "EnableHexNumpad"="1"
But when I try to use it I never get the character I want to. I tried it also with several browsers at the browser test page but nothing works. When I enter Alt+++2222 I get a black smiley instead of the spherical angle.
How can I use a Unicode character in a file name by renaming it with the Windows explorer?