Hello, I've just downloaded the last version of IbExpert Free, and I get (from McAfee) this info: "Detected: NewWin32 (Virus) from ..HK-Software\IBExpert\is-FU02Q.tmp", but no virus was detected with Microsoft Security Essentials.
Most likely you received a false virus notification but in order to be sure about the package you want to install, please test your application with VirusTotal. VirusTotal allows you to upload and test the package with various antivirus applications. Then based on the score obtained you can form an opinion whether the software you want to install is infected or not.