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AppDomain.CreateDomain Method (String, Evidence, AppDomainSetup, PermissionSet, StrongName[])


Creates a new application domain using the specified name, evidence, application domain setup information, default permission set, and array of fully trusted assemblies.

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

public static AppDomain CreateDomain(
	string friendlyName,
	Evidence securityInfo,
	AppDomainSetup info,
	PermissionSet grantSet,
	params StrongName[] fullTrustAssemblies


Type: System.String

The friendly name of the domain. This friendly name can be displayed in user interfaces to identify the domain. For more information, see the description of FriendlyName.

Type: System.Security.Policy.Evidence

Evidence that establishes the identity of the code that runs in the application domain. Pass null to use the evidence of the current application domain.

Type: System.AppDomainSetup

An object that contains application domain initialization information.

Type: System.Security.PermissionSet

A default permission set that is granted to all assemblies loaded into the new application domain that do not have specific grants.

Type: System.Security.Policy.StrongName[]

An array of strong names representing assemblies to be considered fully trusted in the new application domain.

Return Value

Type: System.AppDomain

The newly created application domain.

Exception Condition

friendlyName is null.


The application domain is null.


The ApplicationBase property is not set on the AppDomainSetup object that is supplied for info.

You must set the ApplicationBase property of the AppDomainSetup object that you supply for info. Otherwise, an exception is thrown.

If securityInfo is not supplied, the evidence from the current application domain is used.

The information provided for grantSet and fullTrustAssemblies is used to create an ApplicationTrust object for the new application domain.


to provide evidence. Associated enumeration: SecurityPermissionFlag.ControlEvidence.


for the ability to create and manipulate an application domain. Associated enumeration: SecurityPermissionFlag.ControlAppDomain. Security action: Demand.

.NET Framework
Available since 2.0
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