The version of UltraViewer is a lightweight, 1.5 MB download that allows you to run the software without a full installation. It is specifically designed for quick, one-time remote support sessions or for use on restricted systems where you lack administrative privileges. Portable vs. Installer Version
Free UltraViewer sessions are limited to a few hours (some users report up to 6 hours per session). After that, you must restart the program. ultraviewer portable zip download
If your workflow requires a native portable ZIP for security or speed, these similar remote desktop tools offer official portable packages: Portable (ZIP) The version of UltraViewer is a