LoaderOptimization Enumeration (System)

LoaderOptimization Enumeration

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Microsoft Visual Studio 2008/.NET Framework 3.5

Other versions are also available for the following:

.NET Framework Class Library

LoaderOptimization Enumeration

An enumeration used with the LoaderOptimizationAttribute class to specify loader optimizations for an executable.

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

Syntax

Visual Basic (Declaration)

<SerializableAttribute> _
<ComVisibleAttribute(True)> _
Public Enumeration LoaderOptimization

Visual Basic (Usage)

Dim instance As LoaderOptimization

[SerializableAttribute]
[ComVisibleAttribute(true)]
public enum LoaderOptimization

Visual C++

[SerializableAttribute]
[ComVisibleAttribute(true)]
public enum class LoaderOptimization

JScript

public enum LoaderOptimization

Members

	Member name	Description
	NotSpecified	Indicates that no optimizations for sharing internal resources are specified. If the default domain or hosting interface specified an optimization, then the loader uses that; otherwise, the loader uses SingleDomain.
	SingleDomain	Indicates that the application will probably have a single domain, and loader must not share internal resources across application domains.
	MultiDomain	Indicates that the application will probably have many domains that use the same code, and the loader must share maximal internal resources across application domains.
	MultiDomainHost	Indicates that the application will probably host unique code in multiple domains, and the loader must share resources across application domains only for globally available (strong-named) assemblies that have been added to the global assembly cache.
	DomainMask	Obsolete. Do not use. This mask selects the domain-related values, screening out the unused DisallowBindings flag.
	DisallowBindings	Obsolete. Ignored by the common language runtime.

Remarks

The meaning of MultiDomainHost changed in the .NET Framework version 2.0. The loader now shares resources across application domains only for assemblies that have been added to the global assembly cache.

Note:
If custom code access security policy is set for the AppDomain, by using the SetAppDomainPolicy property, and the AppDomain is created using the MultiDomain flag, the effect is the same as specifying the MultiDomainHost flag; that is, only assemblies in the GAC are shared. When this occurs, the loader does not throw an exception and the application does not experience the performance gains associated with the MultiDomain flag.

Note:

If custom code access security policy is set for the AppDomain, by using the SetAppDomainPolicy property, and the AppDomain is created using the MultiDomain flag, the effect is the same as specifying the MultiDomainHost flag; that is, only assemblies in the GAC are shared. When this occurs, the loader does not throw an exception and the application does not experience the performance gains associated with the MultiDomain flag.

For more information on assembly sharing and domain-neutral assembly loading, see Application Domains and Assemblies.

Platforms

Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98

The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

Version Information

.NET Framework

Supported in: 3.5, 3.0, 2.0, 1.1, 1.0

Reference

System Namespace

LoaderOptimizationAttribute

Other Resources

Application Domains and Assemblies