Win10不支持安装.net fx1.1,如果运行程序需要.net fx1.1支持,可以安装.net fx3.5sp1(包含了fx1.1)。
MSDN这样说的
The .NET Framework 1.1 is not supported on the Windows 8, Windows 8.1, Windows Server 2012, Windows Server 2012 R2 or the Windows 10 operating systems. In some cases, the .NET Framework 1.1 is specifically identified as required for an application to run. In those cases, you should contact your independent software vendor (ISV) to have the application upgraded to run on the .NET Framework 3.5 SP1 or later version. For additional information, see Migrating from the .NET Framework 1.1.
MSDN链接:https://msdn.microsoft.com/en-us/library/hh925570(v=vs.110).aspx