Update powershell.js

lib/powershell.js

@@ -6,8 +6,24 @@ var scope = {
     require: global.require
 };
 
-scope.execScript = function(scriptName) {
+scope.execScript = function(scriptName, args) {
-    return SHELL.exec("powershell.exe -NoProfile -ExecutionPolicy Bypass -nologo -file " + scriptName + ".ps1");
+    var arguments = [
+        "powershell.exe",
+        "-NoProfile",
+        "-ExecutionPolicy",
+        "ByPass",
+        "-nologo",
+        "-file",
+        scriptName + ".ps1"
+    ];
+
+    if(typeof(args) !== "undefined") {
+        for(var i in args) {
+            arguments.push(args[i]);
+        }
+    }
+
+    return SHELL.exec(arguments.join(' '));
 };
 
 return scope;