Assembly.LoadFile Method (String)


The .NET API Reference documentation has a new home. Visit the .NET API Browser on to see the new experience.

Loads the contents of an assembly file on the specified path.

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

public static Assembly LoadFile(
	string path


Type: System.String

The fully qualified path of the file to load.

Return Value

Type: System.Reflection.Assembly

The loaded assembly.

Exception Condition

The path argument is not an absolute path.


The path parameter is null.


A file that was found could not be loaded.


The path parameter is an empty string ("") or does not exist.


path is not a valid assembly.


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

Use the LoadFile method to load and examine assemblies that have the same identity, but are located in different paths.LoadFile does not load files into the load-from context, and does not resolve dependencies using the load path, as the LoadFrom method does. LoadFile is useful in this limited scenario because LoadFrom cannot be used to load assemblies that have the same identities but different paths; it will load only the first such assembly.


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


to load an assembly with evidence. Associated enumeration: SecurityPermissionFlag.ControlEvidence

.NET Framework
Available since 1.1
Return to top