Question

I have a Visual Studio 2010 solution that contains a WCF service project. When I am debugging the solution, the first time that I access the WCF project, I get the pop up message:

"Security Warning: Attaching to a process owned by an untrusted user can be dangerous. If the following information looks suspicious or you are unsure, do not attach to this process."

If I click OK, I can debug without problem. All subsequent access to the WCF service in that dubbing session run without the warning.

If I click on the help link on the pop up, it takes me to this page:

Security Warning: Attaching to a process owned by an untrusted user can be dangerous. If the following information looks suspicious or you are unsure, do not attach to this process.

On that page there is a sentence that says:

If you are debugging a legitimate scenario that causes this warning to appear, and want to suppress it, there is a registry setting that allows you to do this.

However, it does not tell you what that setting is or provide any obvious links to pages that might impart that information. I looked through a lot of related pages on the site and searched with Google, but did not come upon the specifics of a registry setting.

Please, someone point me in the right direction?

Answer 1

• Visual Studio 2008 – HKEY_CURRENT_USER\Software\Microsoft\VisualStudio\9.0\Debugger\DisableAttachSecurityWarning
• Visual Studio 2005 – HKEY_CURRENT_USER\Software\Microsoft\VisualStudio\8.0\Debugger\DisableAttachSecurityWarning

See also this blog entry.