URL part | Example |
Protocol | http:// |
Server name | www.contoso.com/ |
Folder or file path | sites/marketing/documents/Shared%20Documents/Promotion/ |
File name | Some%20File.xlsx |
- 260 Unicode (UTF-16) code units – the characters in a full file path, not including a domain/server name.
- 256 Unicode (UTF-16) code units – the characters in a full folder path, not including the file name and the domain/server name.
- 128 Unicode (UTF-16) code units - characters in a path component, that is, a file or folder name.
- 260 Unicode (UTF-16) code units – the characters in a full path, including a domain/server name for use with Office clients.
- 256 Unicode (UTF-16) code units – the characters in a full path including the domain/server name, for use with Active X controls.
The above limitations apply to the total length of the URL path to a folder or a file in SharePoint Foundation 2010 but not to the length of any parameters. Also, these limitations apply only to un-encoded URLs, not to encoded URLs. There is no limit to encoded URLs in SharePoint Foundation 2010
Reference: http://technet.microsoft.com/en-us/library/ff919562.aspx