I notice an old thread with same title, but could not post to that.
I have just installed Bitdefender Internet Security 2015
I got the free for 6 months offer.
(I had to install the 2015 version as they have decided to not support XP in the 2016 version.
(Their advice to me was upgrade my OS, however I have a few old PCs, and networking is much more painful in W7 upwards)
I have a small program that I wrote in VB6 which Avast never had a problem with.
I manually organize my XP Start menu (MS one, but is in classic mode)
I had a shortcut to my program, in the MS startup folder, and BitDefender deleted it.
When I tried to do my manual organize and put the shortcut back, BitDefender would not let me (even when I disable BitDefender).
I noticed there was a log, so I read the deleting/blocking message, and chose to allow it.
Next Startup of Windows the same things happened.
My program just launches TBird and FFox, and has the ability for me to mouse a label to tell windows to shutdown.
Reading the older thread (same name), Shane (Administrator) changed the compile of his program, to fix his problem.
Actually I had to do the opposite and compile to P-Code
It just let me place a shortcut into the "startup' folder, so that is an improvement.
I have not restarted Windows yet (takes a while), but here's hoping.
Shirley BitDefender should allow us to whitelist a program ?