It was misclassified once by an anti virus program. When we asked why they said that it was a known bug when using WinAPI APIs in BHOs (IE extensions) They fix

It was misclassified once by an anti virus program. When we asked why they said that it was a known bug when using WinAPI APIs in BHOs (IE extensions) They fixed it pretty soon. It was also a motivation to drop IE support (and crossrider) but we were mostly happy with them.