Hi, perhaps someone could have a look at this.
With a specific Live Security Platinum infection (I can provide the sample if need be), on a Windows 7 Professional 64 bit (non-sp1), I am unable to start CCE or Killswitch in Aggressive mode.
As a side note: not even Hitman Pro can be started whilst the infection is active and running.
Unfortunately Aggressive mode is not able to bypass malware which modifies registry classes associated with .exe files execution. This is what this fake AV seems to do. You can change killswitch.exe to iexplore.exe(or winlogon.exe or any other system file) and the run. Open QuickRepair and post a screenshot. You will see probably that “Exe file” is highlighted and able to fix. Can you test this?