AppDomain.CreateInstanceAndUnwrap Method (String, String)
Creates a new instance of the specified type. Parameters specify the assembly where the type is defined, and the name of the type.
Assembly: mscorlib (in mscorlib.dll)
Return ValueType: System.Object
An instance of the object specified by typeName.
assemblyName or typeName is a null reference (Nothing in Visual Basic).
No matching public constructor was found.
typename was not found in assemblyName.
assemblyName was not found.
The caller does not have permission to call this constructor.
The operation is attempted on an unloaded application domain.
assemblyName is not a valid assembly.
Version 2.0 or later of the common language runtime is currently loaded and assemblyName was compiled with a later version.
An assembly or module was loaded twice with two different evidences.
If you make an early-bound call to a method M of an object of type T1 that was returned by CreateInstanceAndUnwrap, and that method makes an early-bound call to a method of an object of type T2 in an assembly C other than the current assembly or the assembly containing T1, assembly C is loaded into the current application domain. This loading occurs even if the early-bound call to T1.M() was made in the body of a DynamicMethod, or in other dynamically generated code. If the current domain is the default domain, assembly C cannot be unloaded until the process ends. If the current domain later attempts to load assembly C, the load might fail.
The following code example shows the simplest way to execute code in another application domain. The example defines a class named Worker that inherits from MarshalByRefObject. The Worker class defines a method that displays the name of the application domain in which it is executing. The example creates instances of Worker in the default application domain and in a new application domain.
The assembly that contains Worker must be loaded into both application domains, but it can load other assemblies that exist only in the new application domain.
for the ability to access the location of the assembly if code base is supplied by a configuration file. Associated enumeration: FileIOPermissionAccess.PathDiscovery
for the ability to read the file containing the assembly manifest, or if you are creating a type from a module other than the manifest file. Associated enumeration: FileIOPermissionAccess.Read
for the ability to access the location of the assembly if the assembly is not local.
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.