Citrix Studio is extremely slow to start up and displays the following error message:

“This snap-in is not responding”

To resolve this issue, you can either provide the computer with internet access so it can verify the Authenticode signature, or disable the Authenticode signature checking feature for Microsoft Management Console as shown in the following snap- in.

Within the Internet Explorer, clear Check for publisher’s certificate revocation, as displayed in the following screen shot:

(Accessible through: Tools > Internet Options > Advanced (tab) > Security (Item))

Problem Cause

Citrix MMC based administrative consoles feature components that are written using the Microsoft .NET Framework. Citrix signs these .NET based components with an Authenticode signature as an added security mechanism.

In situations where a Citrix MMC based administrative console is run from a computer without internet access, Windows is unable to verify the Authenticode signature, and as a result, this causes a delay during the startup of the console.