Thanks - your notes on integration of Net::SFTP::Foreign::Backend::Net_SSH2 are useful - if I ever need SFTP functions. Lately, I've been looking to augment my Cisco scripts currently using Net::Telnet::Cisco with Net::SSH2 for the above reasons about Windows support. I was trying to find some integration so the API would be similar to Net::Telnet(::Cisco) - something like Net::SSH2::Cisco - see here: Child Net::SSH2 object trouble.

Ultimately, I got a hack job working, but would love to see a better approach that does something like you mention about integrating modules on the back end so re-use instead of re-write code.