Use TrimVMSVersions raw session settings:

https://beta.winscp.net/eng/docs/rawsettings

The easiest is to have WinSCP GUI generate a script template for you:
https://beta.winscp.net/eng/docs/ui_generateurl#script

Hi There

I've got an issue with a transfer of data to a remote server using scripting.

My command line is pretty basi:

put -delete D:\Staging\Sftp\DPD\Outbound\*393676*.* /IN/*.*

However as the source system is OpenVMS it's carrying the verison number over to the remote host and of course they can't deal with it. I can see that in the options you can tick a box to remove OpenVMS version numbers which is great for an interactive job but is there a way to pass it as a parameter in a script like /novmsversionumber on the command line when you call WinSCP.com

Any advice gratefully received.