The official installer can be (Uni)extracted -- it's built with NSIS, and all needed files will be inside the '_•€' folder -- and settings are kept in 'stunnel.conf' inside program folder.
There's something of a learning curve to be able to use it, so reading of the (extensive) documentation is recommended; I'm listing below two resources I found that may help with it, since their pre-configured examples can work as guides...
- 1. Stunnel_portable is a blat (http://www.portablefreeware.com/forums/ ... php?t=2690) bundle available from the blat Yahoo! group (which I took the liberty of mirroring to http://mir.cr/0LOB6MXZ);
2. Portable HFS is now an obsolete package (WARNING: includes Heartbleed afflicted OpenSSL v1.0.0c libraries!), but contains an example configuration file for stunnel v4.35, plus an AutoIt utility ('confmakr.exe') for setting needed configurations through the GUI (see http://www.rejetto.com/forum/f-a-q-s/to ... ation-gui/).
[url]http://www.stunnel.org/[/url] author wrote:The stunnel program is designed to work as an SSL encryption wrapper between remote client and local (inetd-startable) or remote server. It can be used to add SSL functionality to commonly used inetd daemons like POP2, POP3, and IMAP servers without any changes in the programs' code. Stunnel uses the OpenSSL library for cryptography, so it supports whatever cryptographic algorithms are compiled into the library.
(Softpedia mirror page: http://www.softpedia.com/get/Network-To ... nnel.shtml)