PuTTY agent download
Pageant is designed to ease the use of PuTTY, PSCP, Plink and PSFTP, providing a SSH authorization agent ready to store all your private keys within a secure place. The main advantage to this is that you don't have to remember and enter a passphrease each time you need to use a private key.
This small utility is often integrated in SCP and FTP client packages, aiming to initialize connection sessions without having to provide login data. Practically, it allows automatic logging authentication.