Post an earlier problem with Trojan agen/gen-cdesc.(149) and got AVZ and HijackThis to work after running Kaspersky bootable cd which removed Trojan Win32.Sirefef.a.
These trojans were preventing various programs to work and making them unaccessible. My system is in a mess and I am not quite sure if I am clean of trojans.
I have uploaded the logs.
Thank you