While Microsoft no longer officially supports .NET 1.1 on modern Windows, you can often get it to work using the following manual process: Microsoft Learn Download the 32-bit Redistributable : Get the standard Microsoft .NET Framework 1.1 Redistributable (dotnetfx.exe). Download Service Pack 1 Microsoft .NET Framework 1.1 Service Pack 1 (NDP1.1sp1-KB867460-X86.exe). Use Command Prompt
Microsoft .NET Framework 1.1 was a watershed moment for Windows development. It brought together Visual Basic, C++, and C# developers under a unified platform and laid the groundwork for the web services era that defined the early 2000s. Its service pack, SP1, solidified its stability and security, making it the go-to runtime for countless enterprise and consumer applications for years.
Microsoft has removed .NET Framework 1.1 SP1 from its main download center, but it remains on the Microsoft Update Catalog and archive servers. Below are the (still digitally signed by Microsoft) download links. microsoft net framework 1.1 service pack 1 64-bit download
dotnetfx.exe /c:"msiexec.exe /a netfx.msi TARGETDIR=C:\DotNet" Extract SP1: NDP1.1sp1-KB867460-X86.exe /xp:C:\DotNet\SPS_Deployment.msp
Elias typed in "Property Deed, 1924, Lot 4." While Microsoft no longer officially supports
On 64-bit versions of Windows (like Windows 10 or 11), it runs in 32-bit compatibility mode Stack Overflow How to Install on 64-bit Systems
There is no native 64-bit version of . All applications built with .NET Framework 1.1 are treated as 32-bit (x86) and run via the WOW64 (Windows-on-Windows 64-bit) subsystem on 64-bit operating systems. Key Download & Installation Links It brought together Visual Basic, C++, and C#
Due to the age of this software, the primary source for downloading the file is the . Download from Microsoft Update Catalog
Open the Command Prompt as an Administrator and execute the following command to extract the setup files: C:\DotNet\dotnetfx.exe /c /t:C:\DotNet\DotNet11 Use code with caution. Step 4: Extract the Service Pack
. It includes the core engines for versions 2.0 and 3.0 and can often run software originally designed for 1.1 without the security risks of the older version. Super User
Microsoft never released a native, standalone 64-bit version of the .NET Framework 1.1 or its Service Pack 1 for standard x64 architecture.