Instead of having to look up the exact syntax for pscp every time, here's a list of examples for future reference. In these examples, I'm transferring a file (bar.zip) from a Windows host to a Linux server (with the destination path of /home/druss/Desktop/).
"C:\Program Files (x86)\PuTTY\pscp.exe" -scp -P 2134 -pw mypassword bar.zip druss@foo.dyndns.info:/home/druss/Desktop/