"Sandboxie is a sandbox-based isolation software for 32- and 64-bit Windows NT-based operating systems."
https://sandboxie-plus.com/
The application provides built-in portability feature which works flawlessly. Though it still would be nice to have it in the PortableApps repository.
https://portableapps.com/comment/243977#comment-243977
“All these years that I had spent in the service of mankind brought me nothing but insults and humiliation.”
― Nikola Tesla ―
“I'm such an open book, but you shall read between the lines.”
― Neo Buddha ―
It refers to Sandboxie, not Sandboxie-Plus. Moreover, I've been using Sandboxie-Plus in portable mode for a while and I haven't encountered any issue. It has built-in clean-up&removal at shutdown feature.