The issue you are facing with initiating a remote desktop session from Windows 7 to a Windows XP Pro or a Windows Server 2003 machine freezing after entering credentials might indeed be related to compatibility problems with the Remote Desktop Protocol (RDP) client. Here are some steps you can take to troubleshoot and potentially resolve this issue: 1. Update RDP Client: Ensure that both the Windows 7 machine and the target machines (Windows XP Pro and Windows Server 2003) have the latest Remote Desktop Protocol client updates installed. This can help address any compatibility issues. 2. Compatibility Mode: You can try running the Remote Desktop client in compatibility mode. Right-click on the Remote Desktop shortcut, go to...