.NET Framework 2.0 FAQs - Everything You Need to Know Before Downloading
A lot of users are confused if they need to install an older version of NET Framework like NET 2.0. In this post, MiniTool provides a full guide on the NET Framework 2.0 download/install and other related information.
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Microsoft .NET Framework 4.5 Download & Install for Windows 8/7 What is .NET Framework 4.5? Where to download NET Framework 4.5? If you are also trying to figure them out, this post is what you need.
The NET Framework 2.0 has been supported for a decade, but it reaches the end of support on April 12, 2016. That is to say, no longer updates and security fixes/patches are provided for this version. However, certain apps and programs still require Microsoft .NET Framework 2.0 to run. In this case, you can manually download NET.Framework 2 and install it.
Since the NET Framework 3.5 version contains .NET 2.0 and 3.0, we recommend you check if you have already installed NET 3.5 on your PC. If it is, you just need to enable NET 3.5. If not, you can refer to the following .NET Framework 2.0 download and install guide.
Step 1. Click here to open the Microsoft .NET Framework 2.0 (x64) Service webpage, and then select the language from the drop-down menu and click on Download. Then select a location to save the download package.
If you are running on a 32-bit operating system, download Microsoft .NET Framework 2.0 (x86) from here. If you are not sure about that, this post provides a guide to check whether your system is x64 or x86 version.
Why I install .net3.5 manual failed ? I download the .netframework 3.5 and copy to windows 8. I run the .net3.5 installation package. it also popup notice. But I want to install .net3.5 not require the network. any body gives some suggest?
The .NET Framework Repair Tool provides an option to repair the versions of .NET Framework that are installed on the computer (step 3 of the process in the "Repair Tool options" section). The tool requires the redistributable files of those versions to be available at the time of repair. By default, the tool downloads these packages from the internet during the repair. If your computer has limited or no internet connectivity, you should use Offline mode for the repair. To do this, specify the /addsource option together with the path of the folder that contains the redistributable files, as in the following example:
NetfxRepairTool.exe /addsource \\SHARE_PC\SHARE_FOLDER If the Repair Tool does not find the required redistributable in the specified folder, it will try to download the file from the internet. The Repair Tool cannot do this if the required file cannot be downloaded. The following table lists the .NET Framework redistributable files.
How to download free net framework 2.0 for Windows 10
Download free net framework 2.0 service pack 1 (x64) from Microsoft
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How to install and uninstall .NET Framework on various Windows versions.
The .NET Framework (pronounced as "dot net") is a proprietary software framework developed by Microsoft that runs primarily on Microsoft Windows. It was the predominant implementation of the Common Language Infrastructure (CLI) until being superseded by the cross-platform .NET project. It includes a large class library called Framework Class Library (FCL) and provides language interoperability (each language can use code written in other languages) across several programming languages. Programs written for .NET Framework execute in a software environment (in contrast to a hardware environment) named the Common Language Runtime (CLR). The CLR is an application virtual machine that provides services such as security, memory management, and exception handling. As such, computer code written using .NET Framework is called "managed code". FCL and CLR together constitute the .NET Framework.
FCL provides the user interface, data access, database connectivity, cryptography, web application development, numeric algorithms, and network communications. Programmers produce software by combining their source code with .NET Framework and other libraries. The framework is intended to be used by most new applications created for the Windows platform. Microsoft also produces an integrated development environment for .NET software called Visual Studio.
.NET Framework began as proprietary software, although the firm worked to standardize the software stack almost immediately, even before its first release. Despite the standardization efforts, developers, mainly those in the free and open-source software communities, expressed their unease with the selected terms and the prospects of any free and open-source implementation, especially regarding software patents. Since then, Microsoft has changed .NET development to more closely follow a contemporary model of a community-developed software project, including issuing an update to its patent promising to address the concerns.[2]
In April 2019, Microsoft released .NET Framework 4.8, the last version of the framework as a proprietary offering. Only monthly security and reliability bug fixes to that version have been released since then. No further changes to that version are planned.[3]
While Microsoft and their partners hold patents for CLI and C#, ECMA and ISO require that all patents essential to implementation be made available under "reasonable and non-discriminatory terms". The firms agreed to meet these terms, and to make the patents available royalty-free. However, this did not apply to the part of the .NET Framework not covered by ECMA-ISO standards, which included Windows Forms, ADO.NET, and ASP.NET. Patents that Microsoft holds in these areas may have deterred non-Microsoft implementations of the full framework.[8]
Common Language Infrastructure (CLI) provides a language-neutral platform for application development and execution. By implementing the core aspects of .NET Framework within the scope of CLI, these functions will not be tied to one language but will be available across the many languages supported by the framework.
Because computer systems commonly require interaction between newer and older applications, .NET Framework provides means to access functions implemented in newer and older programs that execute outside .NET environment. Access to Component Object Model (COM) components is provided in System.Runtime.InteropServices and System.EnterpriseServices namespaces of the framework. Access to other functions is via Platform Invocation Services (P/Invoke). Access to .NET functions from native applications is via the reverse P/Invoke function.
While Microsoft has never implemented the full framework on any system except Microsoft Windows, it has engineered the framework to be cross-platform,[23] and implementations are available for other operating systems (see Silverlight and Alternative implementations). Microsoft submitted the specifications for CLI (which includes the Base Class Libraries, CTS, and CIL),[24][25][26] C#,[27] and C++/CLI[28] to both Ecma International (ECMA) and International Organization for Standardization (ISO), making them available as official standards. This makes it possible for third parties to create compatible implementations of the framework and its languages on other platforms.
.NET Framework has its own security mechanism with two general features: Code Access Security (CAS), and validation and verification. CAS is based on evidence that is associated with a specific assembly. Typically the evidence is the source of the assembly (whether it is installed on the local machine or has been downloaded from the Internet). CAS uses evidence to determine the permissions granted to the code. When calling code demands that it be granted a specific permission, CLR performs a call stack walk checking every assembly of each method in the call stack for the required permission; if any assembly is not granted the permission, it will throw a security exception.
CLR frees the developer from the burden of managing memory (allocating and freeing up when done); it handles memory management itself by detecting when memory can be safely freed. Instantiations of .NET types (objects) are allocated from the managed heap; a pool of memory managed by CLR. As long as a reference to an object exists, which may be either direct, or via a graph of objects, the object is considered to be in use. When no reference to an object exists, and it cannot be reached or used, it becomes garbage, eligible for collection.
.NET Framework includes a garbage collector (GC) which runs periodically, on a separate thread from the application's thread, that enumerates all the unusable objects and reclaims the memory allocated to them. It is a non-deterministic, compacting, mark-and-sweep garbage collector. GC runs only when a set amount of memory has been used or there is enough pressure for memory on the system. Since it is not guaranteed when the conditions to reclaim memory are reached, GC runs are non-deterministic. Each .NET application has a set of roots, which are pointers to objects on the managed heap (managed objects). These include references to static objects, objects defined as local variables or method parameters currently in scope, and objects referred to by CPU registers.[31] When GC runs, it pauses the application and then, for each object referred to in the root, it recursively enumerates all the objects reachable from the root objects and marks them as reachable. It uses CLI metadata and reflection to discover the objects encapsulated by an object, and then recursively walk them. It then enumerates all the objects on the heap (which were initially allocated contiguously) using reflection. All objects not marked as reachable are garbage.[31] This is the mark phase.[32] Since the memory held by garbage is of no consequence, it is considered free space. However, this leaves chunks of free space between objects which were initially contiguous. The objects are then compacted together to make free space on the managed heap contiguous again.[31][32] Any reference to an object invalidated by moving the object is updated by GC to reflect the new location.[32] The application is resumed after garbage collection ends. The latest version of .NET framework uses concurrent garbage collection along with user code, making pauses unnoticeable, because it is done in the background.[33]