How to fix disabled Preferences in Citrix Receiver for Windows

Imagine that you’ve just installed Citrix Receiver for Windows 3.0. The nice broadcast icon already appears in system tray, but Preferences item in the context menu is disabled for some reason. The system logs has no relevant errors, and Citrix is not mentioned at all under Programs in the Start Menu. This is the time to read the documentation and discover that Microsoft .NET 2.0 or higher is required for Citrix Receiver to operate. Unfortunately, Receiver installation process does not verify that .NET is actually installed on your machine…