Contact US

Log In

Come Join Us!

Are you a
Computer / IT professional?
Join Tek-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!

*Tek-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

I can't access the registry

I can't access the registry

I can't access the registry


I have a very very simple code :

using System;

using System.Collections.Generic;

using System.Text;

using Microsoft.Win32;

namespace test


class Program


static void Main(string[] args)


RegistryKey hklm = Registry.LocalMachine;

RegistryKey hkSoftware = hklm.OpenSubKey("Software");

RegistryKey hkMicrosoft = hklm.OpenSubKey("Microsoft");




This does not work. I have this error related to the OpenSubKey() function :

"Request for the permission of type 'System.Security.Permissions.RegistryPermission, mscorlib, Version=, Culture=neutral, PublicKeyToken=b77a5c561934e089' failed."

It has been 2 days I am trying to find what is wrong on the Internet and I found nothing.

I am the administrator on my box, I can create Registry Keys and I have given full access to the VS Developer group.

Thanks a lot for any help.

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Tek-Tips Forums free from inappropriate posts.
The Tek-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Tek-Tips forums is a member-only feature.

Click Here to join Tek-Tips and talk with other members! Already a Member? Login

Close Box

Join Tek-Tips® Today!

Join your peers on the Internet's largest technical computer professional community.
It's easy to join and it's free.

Here's Why Members Love Tek-Tips Forums:

Register now while it's still free!

Already a member? Close this window and log in.

Join Us             Close