u

portscan.bat

@@ -0,0 +1,14 @@
+@ if not "" == "%1" (
+  set PORT=%1
+) else (
+  echo === Enter [port] to scan:
+  set /p PORT=">>> "
+  echo;
+)
+
+netstat -aon |findstr %PORT%
+
+@echo;
+
+@echo "tasklist |findstr [PID]": to find the process, 
+@echo "taskkill /T /F /PID [PID]": to kill the process.