Your computer has been severely infected by trojan horse, that is WS2_42.DAT. This is quite dangerous and unsafe for your PC and there may be other infections on your PC. You should urgently check your PC and remove any malicious application including WS2_42.DAT as soon as possible.
|Location : %ProgramFiles%\Internet Explorer\ws2_42.dat
Type : Trojan Horse
Dangerous : YES
Removal : Immediately
How to get rid of WS2_42.DAT [ Manual Removal Method ]