Hi Adrien,
even if I installed Puresight 3.0 and now have a StatListDb file newer than the one installed by Puresight 2.0.3, I noticed that i have the same problem of another person (I read it on this forum): StatListDb is never updated by the scheduled task into Puresight plugin.
I checked every SYSTEM security permission for every folder you said to do that and they are always full permissions. I could tell you the credentials to connect to our Wingate server using RealVNC enterprise edition to check it and find why Puresight is not updated. This problem persists from older versions. Please notice that I should have changed the WWW Proxy port from 80 to 3128, but this change does not disturb the Antivirus plugin, which is regularly updated every day. Is not possible to update Puresight using the Wingate scheduler as for Kaspersky Antivirus plugin?
Best regards
Nicola