FAQ concerning the self-extracting installation package 'SecureShell.exe' The self-extracting installation package (MD5 checksum d18a72de648427f9e4df636a44c03129 ) will, most likely, work, but... if the program later complains all the time that it can not find the crypto library, try to delete Registry key HKEY_LOCAL_MACHINE\SOFTWARE\c.igaly\ssh\defaults\CryptoLibrary . See also: http://www.doc.ic.ac.uk/~ci2/ssh/