Windows share path limit

Early versions of Windows also defined several predefined, or reserved, names for certain special devices such as communications serial and parallel ports and the default display console as part of what is now called the NT device namespace, and are still supported in current versions of Windows for backward compatibility.

The Win32 namespace prefixing and conventions are summarized in this section and the following section, with descriptions of how they are used. Note that these examples are intended for use with the Windows API functions and do not all necessarily work with Windows shell applications such as Windows Explorer.

For this reason there is a wider range of possible paths than is usually available from Windows shell applications, and Windows applications that take advantage of this can be developed using these namespace conventions. For more information about the normal maximum path limitation, see the previous section Maximum Path Length Limitation. This is how access to physical disks and volumes is accomplished directly, without going through the file system, if the API supports this type of access.

You can access many devices other than disks this way using the CreateFile and DefineDosDevice functions, for example. For example, if you want to open the system's serial communications port 1, you can use "COM1" in the call to the CreateFile function. This allows you to access those devices directly, bypassing the file system. This works because these device names are created by the system as these devices are enumerated, and some drivers will also create other aliases in the system. Always check the reference topic for each API to be sure.

To illustrate, it is useful to browse the Windows namespaces in the system object browser using the Windows Sysinternals WinObj tool. The subfolder called "Global?? Named device objects reside in the NT namespace within the "Device" subdirectory. Here you may also find Serial0 and Serial1, the device objects representing the first two COM ports if present on your system. A device object representing a volume would be something like "HarddiskVolume1", although the numeric suffix may vary.

The name "DR0" under subdirectory "Harddisk0" is an example of the device object representing a disk, and so on. To make these device objects accessible by Windows applications, the device drivers create a symbolic link symlink in the Win32 namespace, "Global?? Without a symlink, a specified device "Xxx" will not be available to any Windows application using Win32 namespace conventions as described previously.

With the addition of multi-user support via Terminal Services and virtual machines, it has further become necessary to virtualize the system-wide root device within the Win32 namespace. This prefix ensures that the path following it looks in the true root path of the system object manager and not a session-dependent path. File System Functionality Comparison.

Skip to main content. I have the same question Report abuse. Details required :. Cancel Submit. SarahKong Independent Advisor. URLs have a character limit which you have found will affect your SharePoint documents. But other than that spaces is the only thing to watch out for an folders. Folders will be included in URL.

Zackary Vanosdol Independent Advisor. In reply to V. Rao's post on July 24, Path limit is characters. Exceeding either will result in the error mentioned. Simplify your folders and titles. Frederik Long. Andre for Directly Independent Advisor. Some programs might support it, but it should not be an issue with files and folders.

Just to isolate it, could you try the following to see if it helps? It does not seem to support long paths. Rohn MVP. We are forced to include this Standard boilerplate legalistic bafflegab disclaimer for any links to non-Microsoft websites: Short form: use these links at your own risk, just like everything else from MS! Quick access. Search related threads. Remove From My Forums. Answered by:. Archived Forums. Windows 7 Networking. Sign in to vote. Hi, On Windows 7, I recently faced a problem where a shared folder is able to receive only 20 concurrent connections.

I desperately need this to be increased. Are there any settings or hotfixes to overcome this limitation? Wednesday, July 24, AM. Hi, Thanks for your post, and from your word, I know that you would like to configure the maximum connection of Windows 7 file sharing more than Hope these could be helpful.

Best Regards, StarSprite.