Assembly: System.Web (in system.web.dll)
URL encoding ensures that all browsers will correctly transmit text in URL strings. Characters such as ?, &, /, and spaces may be truncated or corrupted by some browsers so those characters must be encoded in <A> tags or in query strings where the strings may be re-sent by a browser in a request string.
Windows 98, Windows 2000 SP4, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see System Requirements.