Error with command keep local directory up to date

Installed version 5.15.9 and when I run the command keep local directory up to date I get
following error message:
Error: Could not load file or assembly 'file:///C:\Program Files\WinSCP\WinSCPne
t.dll' or one of its dependencies. This assembly is built by a runtime newer tha
n the currently loaded runtime and cannot be loaded.
Press any key to exit...

What version of Windows are you using?
You may need to upgrade your version of PowerShell.

See https://winscp.net/eng/docs/message_net_runtime_newer_than_currently_loaded

Hi Martin,

Thanks for the reply, it fixed the problem.
Must run Windows 7 32 bit on this machine to keep ancient software in the air.

Kind regards,

Eric Kooij