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bnicer · 13th December 2013, 23:19

I read here that when calling kernel32::CopyFile, you can extend the UNICODE path length beyond MAX_PATH characters to 32,767 wide characters by prepending '\\?\' to the path.

Would there be any reason not to prepend '\\?\' to a path, I thought, and I tested kernel32::CopyFile with a ridiculously long install path.

It didn't work, because the MAX_PATH of 256 characters is defined in NSIS. I wonder, shouldn't the UNICODE NSIS version extend the install path length limit?

13th December 2013, 23:19	#1
bnicer Senior Member Join Date: Feb 2005 Location: London Posts: 218	MAX_CHAR in UNICODE I read here that when calling kernel32::CopyFile, you can extend the UNICODE path length beyond MAX_PATH characters to 32,767 wide characters by prepending '\\?\' to the path. Would there be any reason not to prepend '\\?\' to a path, I thought, and I tested kernel32::CopyFile with a ridiculously long install path. It didn't work, because the MAX_PATH of 256 characters is defined in NSIS. I wonder, shouldn't the UNICODE NSIS version extend the install path length limit?