First of all, thanks for bringing us a very useful application.
It's actually so useful that I stopped using all other file transfer clients because I can do everything with WinSCP!
One thing that has been bugging me is that when using WinSCP to upload large files using unencrypted ordinary FTP to a CDN provider, the transfer speeds are quite slow. For a long time I thought that was due to the CDN provider having a slow input link.
That is, until yesterday when I discovered that if I do exactly the same transfer , same file from the same computer, using FileZilla, the throughput is about four times (4x) higher :shock:
(And yes, I did read the FAQ about slow speed but does not apply here: unencrypted protocol, identical computers and connection)
The CDN is running the ProFTPD 1.3.1 server.
I am using 4.1.8 under WinXP, both 32 and 64 bit client computers.