All the files I put up for download have been scanned (twice actually: before packaging and after) with an up to date ClamWin
The system I use to compile and package the viewer is also clean (bare Windows 7 installation + VS2010: nothing else) and used exclusively for this purpose.
My local network is also behind a Linux firewall. In over 20 years, the machines in my local network never caught any virus or worm.
So, if you get a positive, it's most likely a false one (but it never hurts to double or triple check with yet another anti-virus software to confirm): a common issue with "heuristic" anti-virus software that makes assumption about code sequences instead of comparing the code with a signature database of known viruses. Such heuristic anti-virus software is highly unreliable, and will most likely fire up on program files such as SLPlugin.exe, which purpose is to launch other programs (plugins), this activity being wrongly flagged as "suspect"...
Of course, the file you downloaded could have been infected on my ISP's server (it's not the case: I just re-downloaded it and checked), or on your own computer... To check, compute its md5sum and compare it with the ones below:
- CoolVLViewer-184.108.40.206-Windows-Setup.exe : bd345f5e06b5989e7c3a34e88206c637
- CoolVLViewer-220.127.116.11-Windows-Setup.exe : c9850c59ce8a5dc3344427877776b045
- CoolVLViewer-18.104.22.168-Windows-Setup.exe : e57276981e3c78eedcafda5a3f339fea