One of colleagues emailed me this weekend that he had a problem with Thinap’ed application and AVG. My AVG updated this morning and I can confirm the issue. When you run or download an application(virtualized by Thinapp) the applications is marked as Trojan horse Constructor.DER infected. As a work around you can of course  add all your applications as exceptions cause it’s clearly a false positive. (I downloaded a brand new application from thindownload.com to double check.) We are not the only ones that noticed it cause someone opened a thread on the AVG forum. Let’s hope AVG will fix this issue asap.