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What is Satellite Assemblies in .NET?
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Posted Date :
August 06, 2008
Assemblies which contains culture information are known as satellite assemblies. Satellite assembly is used to get language specific resources for an application.
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What is Satellite Assemblies in .NET?
What are satellite assemblies?
The assembly files which contains localized resource strings.
Can you have two assemblies with the same name in GAC?
Yes you can have two or more assemblies having same name in GAC only when assemblies version no is different.As we know that all assemblies in .NET is having version no.
Where are shared assemblies stored in .NET?
Shared Assemblies are stored in Global Assembly Cache also known as GAC.
How many types of assemblies are in .net , what are they?
Private, Public/Shared, Satellite.
What are private assemblies and shared assemblies?
A private assembly is used only by a single application, and is stored in that application's install directory (or a subdirectory therein). A shared assembly is one that can be referenced by more than one application. In order to share an assembly, the assembly must be explicitly built for this purpose by giving it a cryptographically strong name (referred to as a shared name). By contrast, a private assembly name need only be unique within the application that uses it.
By making a distinction between private and shared assemblies, we introduce the notion of sharing as an explicit decision. Simply by deploying private assemblies to an application directory, you can guarantee that that application will run only with the bits it was built and deployed with. References to private assemblies will only be resolved locally to the private application directory.
There are several reasons you may elect to build and use shared assemblies, such as the ability to express version policy. The fact that shared assemblies have a cryptographically strong name means that only the author of the assembly has the key to produce a new version of that assembly. Thus, if you make a policy statement that says you want to accept a new version of an assembly, you can have some confidence that version updates will be controlled and verified by the author. Otherwise, you don't have to accept them.
For locally installed applications, a shared assembly is typically explicitly installed into the global assembly cache (a local cache of assemblies maintained by the .NET Framework). Key to the version management features of the .NET Framework is that downloaded code does not affect the execution of locally installed applications. Downloaded code is put in a special download cache and is not globally available on the machine even if some of the downloaded components are built as shared assemblies.
The classes that ship with the .NET Framework are all built as shared assemblies.
How can I see what assemblies are installed in the global assembly cache?
The .NET Framework ships with a Windows shell extension for viewing the assembly cache. Navigating to % windir%\assembly with the Windows Explorer activates the viewer.
Is versioning applicable to private assemblies?
Versioning concept is only applicable to global assembly cache (GAC) as private assembly lie in their individual folders.
What are the Types of Assemblies?
One of the disadvantages of using Visual Studio.NET and the .NET framework to develop applications has been the lack of cross-platform support. Since the introduction of the .NET framework and common language run time a few years ago, there have been a few projects designed to bring the .NET framework to other platforms, including Linux and UNIX. The DotGNU project is touted as the "Free software alternative to .NET" and encompasses a number of projects, including DotGNU Portable .NET, which is designed to be used to compile and run C# and C applications on a multitude of platforms, including GNU/Linux, FreeBSD, Mac OS X, and Windows. One of the main features of the product is it's compatibility with EMCA standards for C# and the Common Language Infrastructure (CLI), as well as Microsoft's own CLI implementation in the .NET framework. The project chose to go with a "Virtual Machine" implementation, where bytecode is transformed into a simple instruction set which is then passed to a "Converted Virtual Machine", which then are executed through an interpreter. This approach is different to other open source .NET implementations, but provides more flexibility when porting the project to other platforms. At the core of the project is the runtime engine (ilrun) and compiler (cscc) with an implementation of System.Windows.Forms that make
developing for the platform easier, as it doesn't required translation through another toolkit or toolset.
What's a satellite assembly?
When you write a multilingual or multi-cultural application in .NET, and want to distribute the core application separately from the localized modules, the localized assemblies that modify the core application are called satellite assemblies.
Which Toold allwos you to manage and configure assemblies in the Global Assembly Cache, adjust code access security policy, and adjust remoting services
.NET Framework Configuration Tool
Where are shared assemblies stored?
In Global assembly cache.
What are the core WPF assemblies?
The core WPF assemblies are,
WindowsBase.dll:- It defines the core types constituting the infrastructure of WPF API.
PresentationCore.dll:- Defines numerous types constituting foundation of WPF GUI layer.
PresentationFoundation.dll:- It defines WPF control types, animation & multimedia support, data binding suport and other WPF services.
Besides these three libraries WPF also uses an unmanaged binary called milcore.dll which acts as a bridge between WPF assemblies and DirectX runtime layer.
What are the Different Types of Assemblies?
1) Private Assembly
2) Shared Assembly
3) Satellite Assembly
What Is a Satellite Assembly?
.NET Framework assembly containing resources specific to a given language. Using satellite assemblies, you can place the
resources for different languages in different assemblies, and the correct assembly is loaded into memory only if the user
elects to view the application in that language."
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