Thanks for your post.

This request is being tracked already:
https://winscp.net/tracker/1738
You can vote for it there.

Hi,
as we could not search for this topic, we post a new one.

We would like to be able to use a memorystream in favor of physical file for upload to ftp/sftp server.
We are currently creating a text file on the fly but it seems unneccessary to save it to disk first!
Hence memory stream upload.

Regards Peter and crew