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
Modern 64-bit Windows only supports .NET 1.1 via: microsoft net framework 1.1 service pack 1 64-bit download
You must first install the base before applying the Service Pack. 2. Download Service Pack 1 While Microsoft no longer officially supports