AOL is set to launch on Wednesday its new AIM Pro instant-messaging service, which features security and online meeting functions aimed at corporate users. The service, which is free for anyone to use, integrates with Microsoft Outlook’s calendar and corporate directory and offers one-click access to WebEx voice and video conferencing and collaboration services. Eventually the one-to-one video conferencing will be expanded to allow four-way conferencing, said Brian Curry, vice president of business services at AOL. AIM Pro gives people the option of using their professional e-mail addresses as their AIM screen names. It also provides business-grade security and SSL (Secure Sockets Layer) encryption and automatic antivirus file scanning. A tabbed AIM Pro Buddy List features new modules that let users do a quick people search and listen to news-related podcasts from CNN, ABC News and others. Users also have easy access to Wall Street Journal finance, technology and business stories and stock quotes and market data from AOL Finance. Later, AOL will offer premium packages for a fee that include an IT management console, logging and regulatory compliance features, Curry said. Instant messaging, used in more than 90 percent of North American workplaces, “has created a lot of headaches…