The .Net Framework will get an error.

[hiro555]

What versions of Windows are supported by CopyPasty ?

The .Net Framework will get an error.

Windows 10 32bit v1709

[RobinManoli]

Hi hiro555!

CopyPasty is written with .NET Framework Version=v4.5.2, so any Windows version that supports this version of .Net should be able to run it.

What .NET version do you use? What are you trying to do? What error do you get?

[RobinManoli]

Windows support is listed here:
https://docs.microsoft.com/en-us/dotnet/framework/get-started/system-requirements#supported-client-operating-systems