Download of AirPcapInstaller 4.1 was on the developer's website when we last checked. We cannot confirm if there is a free download of this software available.
We cannot guarantee that the program is safe to download as it will be downloaded from the developer's website. Before launching the program, check it with any free antivirus software. AirPcapInstaller belongs to Internet & Network Tools. The actual developer of the program is Riverbed Technology. The most popular version among AirPcapInstaller users is 4.1.
From the developer:
The AirPcap family is the first open, affordable and easy-to-deploy packet capture solution for Windows. AirPcap captures full 802.11 data, management, and control frames that can be viewed in Wireshark providing in-depth protocol dissection and analysis capabilities. The feature matrix below gives a high-level overview of each adapter in the AirPcap Product Family.
You may want to check out more software, such as WMS Client for Arcview Beta, Usage Agent or SigX, which might be similar to AirPcapInstaller.