well i think no more ur system is infected with this rogue "Antivirus" virus...
lemme explain:
max of viruses in getting into a system configures itself to start itself at system boot..
in ur system the same thing had happened..
the virus had placed itself in the startup list..
now what happened.. any antivirus had deleted that virus but didnt delete that link to startup... thats why its showing that error bcoz system cannot find the file to start..
use MSCONFIG > Startup and unselect that entry...
OR else ignore that popup at system boot... it will cause no harm,probably..
well chanchall i would advice u to post a hijackthis log in this thread.. it would be beneficial in tracking any already running malware in ur system.. get HT from
www.filehippo.com/download_hijackthis
SUDE