Ftp Quote Command

I am trying to mimic a basic Windows Ftp command I need to send. The command I send is: quote dcxm
How can I do this with Winscp in .NET? I have tried session.ExecuteCommand(@"call quote dcxmboxcreate") but it always return false.

It's simply session.ExecuteCommand(@"dcxmboxcreate").

https://winscp.net/eng/docs/guide_ftp_script_to_sftp#quote
https://winscp.net/eng/docs/scriptcommand_call#net