If AnyDesk proves too unstable, consider these legacy-compatible alternatives:
: BlackWingCat's Extended Kernel for Windows 2000 allows the OS to run software designed for Windows XP or later by adding missing APIs. Anydesk For Windows 2000 32 Bit
If you must remotely access a Windows 2000 machine, you might consider older versions of protocols that were common during its era: If AnyDesk proves too unstable