Hello! Chronicle 3 was never meant to run on Windows later than XP, so we had to “hack” it in order to get it to work. The dll file is safe, but it is recognised as a virus since it has to do “sneaky” stuff in order to get L2.exe to run.
If you don’t want to add Vista7.dll to your safe you can use L2Loader.bat from the System folder (make sure you update your system again because I just changed some things on the loader) and it will load L2.exe with another old hack which won’t be detected by your AntiVirus. Your choice!