How? To encrypt something you need a password. Where would WinSCP take the password from?
Think that WinSCP can read txt files and encrypted files that encrypted with WinSCP.
Let me explain via example I've mentioned earlier.
normal-script.txt file can read WinSCP also if your developers add one feature to WinSCP that WinSCP can convert this text file to encrypted text file like below
As you know we can use WinSCP in command line like
WinSCP.exe" /console /script=normal-script.txt
if WinSCP encrypted the text script file like above then we can copy the encrypted file to untrusted environment and we can run the WinSCP like
WinSCP.exe" /console /script=encrypted-file.txt
The logic is so simple actually.
What other product?
I dont know the full name but it should be called Pyro