Very early versions of TeamViewer (e.g., version 5 or earlier) may have worked, though these are no longer supported and may not connect to modern servers.
Even on supported older systems like Windows XP or Windows 7, AnyDesk may automatically reduce image quality to maintain a stable connection. Anydesk For Windows 2000 32 Bit
If a standard old version fails to launch with a "not a valid Win32 application" or missing DLL error, you may need a compatibility layer: Very early versions of TeamViewer (e
AnyDesk can often run as a portable executable without full installation, which is ideal for testing compatibility on older systems without altering system registries. Download Older Versions of AnyDesk Very early versions of TeamViewer (e.g.
Softonic Older Versions : Provides downloads for versions as old as 1.0.1 [8]. Technical Workarounds for Windows 2000