Assembly: mscorlib (in mscorlib.dll)
The registry key is closed. Closed keys cannot be accessed.
The user does not have the necessary registry rights.
A system error occurred, such as deletion of the current key.
The user does not have the permissions required to read the key.
Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.