SimpPro 为即时通讯软件设计的一款安全工具，支持 MSN Messenger、Yahoo! Messenger、ICQ 和 AIM，可以加密文本消息和文件传输。主要功能为：即时通讯文本发送前加密；保护 MSN Messenger 和 ICQ 文件传输；适合个人、小公司、企业使用；与流行即时通讯网络和客户端全面兼容。
You use instant messengers to chat with your friends or colleagues. Did you know that your messages are sent in cleartext over the Internet, regardless of their destination?

SimpPro secures popular instant messengers (MSN Messenger, Yahoo! Messenger, ICQ, AIM, Jabber, Google Talk ) by encrypting text messages and file transfers. SimpPro is the commercial version of SimpLite, currently used by more than 50,000 security-aware IM users worldwide.

Main SimpPro features:

Encrypts IM text messages before they leave your computer  
Protects MSN Messenger and ICQ/AIM file transfers  
Personal, small business and corporate use  
Full compatibility with popular IM networks, clients and with SimpLite