Plugin3D 2.7 could be downloaded 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 of the Plugin3D are 2.7 and 2.5.
According to the results of the Google Safe Browsing check, the developer's site is safe. Despite this, we recommend checking the downloaded files with any free antivirus software. The program lies within System Utilities, more precisely Plugins Addons. This program is a product of Cubicspace Ltd.
From the developer:
Plugin3D™ is a very sophisticated application that has been fully integrated into the 3ds Max environment to fulfill the instant gratification all users want, even on their most complex models and environments. Each user will find something new with Plugin3D™ that can help them perform their jobs more effectively.
You may want to check out more software, such as ansurQA-90Plug-In, RssReaderPlugin or FlashPoints, which might be related to Plugin3D.