Contents
How do you find path length?
To run the Path Length Checker using the GUI, run the PathLengthCheckerGUI.exe. Once the app is open, provide the Root Directory you want to search and press the large Get Path Lengths button. The PathLengthChecker.exe is the command-line alternative to the GUI and is included in the ZIP file.
How long can a file path be?
260 characters
In the Windows API (with some exceptions discussed in the following paragraphs), the maximum length for a path is MAX_PATH, which is defined as 260 characters. A local path is structured in the following order: drive letter, colon, backslash, name components separated by backslashes, and a terminating null character.
How to check the path length of a file?
I created the Path Length Checker tool for this purpose, which is a nice, free GUI app that you can use to see the path lengths of all files and directories in a given directory. I’ve also written and blogged about a simple PowerShell script for getting file and directory lengths.
Is the length of the file path a common factor?
Errors such as this can appear random, and it is only after a step back and some analysis, can we see that it is a scenario where the length of the file path is the common factor. What if we could take a look at our directory structure beforehand to see where problems might show up before we go about copying over a complex file structure.
Is there a way to limit long path names?
Most current application, including Unitrends, no longer have issues with long path names. Some interfaces in Windows still use the standard API and will limit you to 256 character paths, but you can bypass this using \\\\?\\c:\\ . I used to create long paths to test management, monitoring and security applications.
Is there a bug with the path length checker?
There is currently a bug with the Path Length Checker tool where it is not able to process paths in Windows restricted directories (e.g. C:\\Documents and Settings). I get this error right away so it seems strange you haven’t fixed it.