Please download updated .NET assembly package (winscp514automation2.zip) from download page.
https://winscp.net/eng/download.php

I have released development version of the .NET assembly with 5.1.4 by mistake. Will fix it shortly. Meanwhile you can use 5.1.3.

I am also getting same error with latest build.

winscp.dll File Version:1.1.0.3012/Product Version: 5.2.0.0
winscp.exe File Version:5.1.4.3020/Product Version: 5.1.4.0

Also not sure where to find compatible versions

I was getting same error but it has been resolved by pick same version of both the file: WinSCP.exe & WinSCP.dll, because WinSCP.dll v1.0.0.528 is not compatible with WinSCP.exe v4.3.8 or v4.3.6, I am using WinSCP.exe v5.0.7.2268 which is compatible with dll v1.0.0.528.

You can download it from the same please, you have downloaded the assembly:
https://winscp.net/eng/download.php

Can you send me that 5.0.6 Winscp version's exe or msi to my mail

my mail id is : christo83@gmail.com

The only WinSCP version the assembly works with in 5.0.6 beta.

Hi

I have installed Winscp 4.3.7, but i have used 5.0.6
(dll), in my coding i disabled version check like this session.disableVersionCheck=true;
after this i wanted to open this session, this time i got this error on this line "Incompatible External Console Protocol Version 4"
session.Open();

Please tell me the solutions