diff --git a/modules/win-userconsent.js b/modules/win-userconsent.js
index 4aa4a61..f96375e 100644
--- a/modules/win-userconsent.js
+++ b/modules/win-userconsent.js
@@ -240,7 +240,10 @@ function pump_onHwnd(h)
         0,
         0).then(function (h)
         {
-            this.pump._addAsyncMethodCall(this.pump._user32.SendMessageW.async, [h, STM_SETIMAGE, IMAGE_BITMAP, this.pump.options.bitmap.Deref()]);
+            if (this.pump.options.bitmap != null)
+            {
+                this.pump._addAsyncMethodCall(this.pump._user32.SendMessageW.async, [h, STM_SETIMAGE, IMAGE_BITMAP, this.pump.options.bitmap.Deref()]);
+            }
         }).parentPromise.pump = this;
     this._addCreateWindowEx(0, GM.CreateVariable('STATIC', { wide: true }), GM.CreateVariable(this.username, { wide: true }), WS_TABSTOP | WS_VISIBLE | WS_CHILD | SS_LEFT,
         10,         // x position 
@@ -346,6 +349,7 @@ function createLocal(title, caption, username, options)
 
 function create(title, caption, username, options)
 {
+    if (options == null) { options = {}; }
     if (options.uid == null) { return (createLocal(title, caption, username, options)); }
     var self = require('user-sessions').getProcessOwnerName(process.pid).tsid;
     if (self != 0)