Open the encrypted package in the specified file as read only and unshared.
public static EncryptedPackageEnvelope Open(
The file containing the encrypted package.
The file must have an encrypted package.
The opened file is read only and unshared.
Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.