Originally posted here by usmany
Guys, thanks for all da help... found out there is a system on the network .i.e. server that has virus, but i fixed it up.

Thanks guys and to antionline
While in your first post:
The network is free of virus because we don’t allow rubbish to come into the network and we are very caution on that…
Ooooppppssss.....guess you weren't quite cautious enough. All ways a good idea to check what you assume to be impossible also.