MAX_PATH

[sinsi]

OK, some experiments.

Created a folder on the desktop, 255 characters, using code.
Opened OK with Explorer.
Created a text file OK.
File opened with Notepad++, saved OK, but the filename in the title bar was 8.3
Can't rename or delete folder from Explorer, had to code it.
Folder not accessible from CMD.

Created a folder in that folder, same, I imagine it will keep going until approx 64 255-char folders
Trying 256 chars returned an error.

Had some trouble until I remembered that using \\?\ requires a
fully-qualified path, in my case \\?\C:\Users\sinsi\Desktop\zzzzzzzzzzzz...


So not such a good place to store your porn

[TimoVJL]

Some problems are inherited from Windows 95 / 98 ANSI version without native OS UNICODE support.
Also FAT and FAT32 have to be supported.

[NoCforMe]

Had some trouble until I remembered that using \\?\ requires a
fully-qualified path, in my case \\?\C:\Users\sinsi\Desktop\zzzzzzzzzzzz...

So not such a good place to store your porn

You're supposed to use Computer\HKEY_USERS\S-1-5-18\Software ... \MySekritPornStash.
Oh, wait ...