AutoTag can take a long time to load due to each signed DLL being verified by Microsoft's CRL certificate servers.
This is a by design behavior. If your client computer does not need to access the Internet, you can turn off this feature by disable Check for publisher’s certificate revocation.
1. Click the Menu Start->Run, type Control Panel, and click OK
2. Double click Internet Options
3. Navigate to the Tab Advanced
4. Uncheck the Check for publisher’s certificate revocation under Security section
More information you can get from this link: