IE freezes on certain domains when the Add-On is enabled

• running as admin (and not as specific admin user) makes it work just fine
  
• installing a completely empty add-in express add-on project from VS still makes the issue to occur
  
• applying group policies to force IE options don?В?Р?йt affect the issue
  
• adding standard users to local admin groups don?В?Р?йt affect the issue
  
• resetting IE brings up a registry access error
  
• the issue doesn?В?Р?йt seem to occur on the intranet sites, only internet
  
• changing any IE advanced option (and even changing it back, or not) fixes the issue for good on this client and it cannot be broken again until the client is re-imaged
  

using System;
using System.Runtime.InteropServices;
using System.ComponentModel;
using System.Windows.Forms;
using IE = Interop.SHDocVw;
using AddinExpress.IE;
 
namespace AdoptExtensionSynlait
{
    /// <summary>
    /// Add-in Express for Internet Explorer Module
    /// </summary>
    [ComVisible(true), Guid("AC43FE76-FE39-47FA-AFC9-0CA91ED26445")]
    public class IEModule : AddinExpress.IE.ADXIEModule
    {
        public IEModule()
        {
            InitializeComponent();
            //Please write any initialization code in the OnConnect event handler
        }
 
        public IEModule(IContainer container)
        {
            container.Add(this);
 
            InitializeComponent();
            //Please write any initialization code in the OnConnect event handler
        }
 
        #region Component Designer generated code
        /// <summary>
        /// Required by designer
        /// </summary>
        private System.ComponentModel.IContainer components;
 
        /// <summary>
        /// Required by designer support - do not modify
        /// the following method
        /// </summary>
        private void InitializeComponent()
        {
            //
            // IEModule
            //
            this.HandleShortcuts = true;
            this.LoadInMainProcess = false;
            this.ModuleName = "AdoptExtensionSynlait";
        }
        #endregion
 
        #region ADX automatic code
 
        // Required by Add-in Express - do not modify
        // the methods within this region
 
        public override System.ComponentModel.IContainer GetContainer()
        {
            if (components == null)
                components = new System.ComponentModel.Container();
            return components;
        }
 
        [ComRegisterFunctionAttribute]
        public static void RegisterIEModule(Type t)
        {
            AddinExpress.IE.ADXIEModule.RegisterIEModuleInternal(t);
        }
 
        [ComUnregisterFunctionAttribute]
        public static void UnregisterIEModule(Type t)
        {
            AddinExpress.IE.ADXIEModule.UnregisterIEModuleInternal(t);
        }
 
        [ComVisible(true)]
        public class IECustomContextMenuCommands :
            AddinExpress.IE.ADXIEModule.ADXIEContextMenuCommandDispatcher
        {
        }
 
        [ComVisible(true)]
        public class IECustomCommands :
            AddinExpress.IE.ADXIEModule.ADXIECommandDispatcher
        {
        }
 
        #endregion
 
        public IE.WebBrowser IEApp
        {
            get
            {
                return (this.IEObj as IE.WebBrowser);
            }
        }
 
        public mshtml.HTMLDocument HTMLDocument
        {
            get
            {
                return (this.HTMLDocumentObj as mshtml.HTMLDocument);
            }
        }

 
    }
}

• Right click > Run as administrator = IE works fine on all websites
  
• Run IE as standard user (or Run As > any specific admin user) = IE freezes on internet sites
  
• Change any IE advanced option (and even changing it back, or not, it doesn't matter) fixes the issue for good on this client and it cannot be broken again until the client is re-imaged