diff --git a/lib/autoit.js b/lib/autoit.js
index 7dd966d..4e5f5c6 100644
--- a/lib/autoit.js
+++ b/lib/autoit.js
@@ -39,7 +39,7 @@ function AutoItObject() {
 
         if (this.interface != null) {
             try {
-                //this.interface[functionName].apply(args);
+                //this.interface[functionName].apply(null, args);
                 eval("this.interface." + functionName + "(\"" + args.map(addslashes).join("\", \"") + "\")");
             } catch (e) {
                 console.error("AutoItObject.callFunction() ->", e.message);
diff --git a/lib/powershell.js.bak b/lib/powershell.js.bak
index 54b8056..8b13789 100644
--- a/lib/powershell.js.bak
+++ b/lib/powershell.js.bak
@@ -1,43 +1 @@
-////////////////////////////////////////////////////////////////////////
-// Powershell API
-///////////////////////////////////////////////////////////////////////
 
-var SHELL = require("lib/shell");
-
-exports.VERSIONINFO = "Powershell (powershell.js) version 0.1";
-exports.global = global;
-exports.require = global.require;
-
-exports.execScript = function(scriptName, args) {
-    var cmd = [
-        "powershell.exe",
-        "-NoProfile",
-        "-ExecutionPolicy",
-        "ByPass",
-        "-nologo",
-        "-file",
-        scriptName + ".ps1"
-    ];
-
-    if (typeof(cmd) !== "undefined") {
-        cmd = cmd.concat(args);
-    }
-
-    return SHELL.exec(cmd);
-};
-
-exports.execCommand = function(cmd) {
-    return SHELL.exec([
-        "powershell.exe",
-        "-NoProfile",
-        "-ExecutionPolicy",
-        "ByPass",
-        "-nologo",
-        "-Command",
-        "& {" + cmd + "}"
-    ]);
-};
-
-exports.runAs = function(cmd) {
-    return exports.execCommand("Start-Process cmd \"/q /c " + SHELL.addslashes(SHELL.makeCmdLine(cmd)) + "\" -Verb RunAs");
-};
diff --git a/registerDLLs.bat b/registerDLLs.bat
new file mode 100644
index 0000000..05cdec3
--- /dev/null
+++ b/registerDLLs.bat
@@ -0,0 +1,6 @@
+@echo off
+regsvr32 /s "%PROGRAMFILES(X86)%\AutoIt3\AutoItX\AutoItX3.dll"
+regsvr32 /s "%PROGRAMFILES(X86)%\AutoIt3\AutoItX\AutoItX3_x64.dll"
+%WINDIR%\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe /codebase WelsonJS.Toolkit.dll
+%WINDIR%\Microsoft.NET\Framework64\v2.0.50727\RegAsm.exe /codebase WelsonJS.Toolkit.dll
+pause
\ No newline at end of file