Daniel,
 
As asked i have executed the command line that you have asked me to do.Even now i have the same problem.
The command that was used is
curl -T C:\winzip.log --ftp-ssl ftp://xxxxx:xxxxx@192.168.100.23/ <ftp://xxxxx:xxxxx@192.168.100.23/> -k --trace-ascii dump
 
I am attaching the dump, wrapper's logs and the FTP Server's logs.
 
The wrapper however works fine using edtssl's client.But i need a native client which is why i am that interested in lib-curl.
 
Waiting for your help
 
--Vamsi