"Portable" versions are often stripped-down files that lack essential DLLs. This can cause your operating system to crash, lead to blue screens, or cause the software to fail right when you need the monitoring to be active.
Given the risks, it's better to look for legitimate alternatives:
: This refers to a very old version of the software. Modern operating systems (like Windows 10 or 11) likely have compatibility issues with this version, or it may lack the necessary updates to block current web protocols.