Unblock UDP

“Windows Operating System” is blocking UDP requests… i can access ineternet and other lan pcs but they can’t access my pc… here is the log

Date/Time Application Action Source IP Source Port Destination IP Destination Port
10/25/2008 9:10:56 AM Windows Operating System Blocked 192.168.0.7 1071 192.168.0.5 3535
10/25/2008 9:10:59 AM Windows Operating System Blocked 192.168.0.1 1624 192.168.0.5 3535
10/25/2008 9:18:58 AM Windows Operating System Blocked 192.168.0.7 1127 192.168.0.5 3535
10/25/2008 9:19:16 AM Windows Operating System Blocked 192.168.0.7 1130 192.168.0.5 3535