Load Method (String)

AppDomain.Load Method (String)


Loads an Assembly given its display name.

Namespace:   System
Assembly:  mscorlib (in mscorlib.dll)

abstract Load : 
        assemblyString:string -> Assembly
override Load : 
        assemblyString:string -> Assembly


Type: System.String

The display name of the assembly. See Assembly.FullName.

Return Value

Type: System.Reflection.Assembly

The loaded assembly.

Exception Condition

assemblyString is null


assemblyString is not found.


assemblyString is not a valid assembly.


Version 2.0 or later of the common language runtime is currently loaded and assemblyString was compiled with a later version.


The operation is attempted on an unloaded application domain.


An assembly or module was loaded twice with two different evidences.

This method should be used only to load an assembly into the current application domain. This method is provided as a convenience for interoperability callers who cannot call the static Assembly.Load method. To load assemblies into other application domains, use a method such as CreateInstanceAndUnwrap.

For information that is common to all overloads of this method, see the Load(AssemblyName) method overload.


for access to read from a file or directory, and for access to the information in the path itself. Associated enumerations: FileIOPermissionAccess.Read, FileIOPermissionAccess.PathDiscovery.


for the ability to access the location of the assembly if the assembly is not local.

.NET Framework
Available since 1.1
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