I have contacted the developer and he said he had gone too far this time. With so many changes, he could not name it as Process Lasso 4.1 or else it would be as if Microsoft caliing Windows 7 as XP SP4.

However, if you would like to update to Process Lasso 5.0.0.20, just overwrite the current uninstallation. No need to uninstall first. As the matter affect, uninstallation of the previous version is not recommended. Perhaps because it could drive you to loose the current settings?