WebEx PCNow 4.3 was available to download from the developer's website when we last checked. We cannot confirm if there is a free download of this software available. The most popular versions among the software users are 4.3 and 4.0.
We recommend checking the downloaded files with any free antivirus. The common filenames for the program's installer are atagtctl.exe, Pcnmgr.exe or raagtx.exe etc. WebEx PCNow lies within System Utilities, more precisely Remote Computing. This software is a product of Cisco Systems Inc. WebEx PCNow can be installed on 32-bit versions of Windows XP/Vista/7/8.
From the developer:
WebEx PCNow is a powerful web-based service that lets you access your own computer securely from a remote location via any computer with a web browser and an Internet connection, or from a mobile device with a web browser. WebEx PCNow essentially “brings your computer to you” no matter where you are. WebEx PCNow also protects you with continuous backup and lets you actually use your files anytime, anywhere, on any connected device.
You may want to check out more software, such as WebEx Network Recording Player, WebEx One-Click or WebEx Player, which might be similar to WebEx PCNow.