Setting Not Allowed Characters in Item Names
To set the list of characters that file and folder names can not contain call SetNotAllowedCharacters method passing string with a list of invalid characters:
By default following characters are not allowed:
\ / : * ? " < > |
To read the list of not allowed characters call GetNotAllowedCharacters. Note that IT Hit AJAX File Browser supports any characters in item names except '\' symbol. All special and non-English characters are URL-encoded. Also, note that WebDAV servers running on Microsoft IIS 6 and previous versions does not support '%', '&' and '+' symbols.