Hi phrab. das10 is right, 5.22 is the last official version that works on XP. It cant be downloaded from the official site anymore, so, my advice is to forget about it. And keep using the version you have. The Sandboxie servers are dead now, so, you will not be able to Reactivate the license.
But you still can use Sandboxie. For XP, as I see it, you have two choices. 1. Forget about the license (it is dead now), and get in the habit of using Sandboxie as it was used with the free version of SBIE.
You ll still have same protection, but without things getting done automatically.
You can make things closer to automatic, by creating and using sandboxed shortcuts for your programs. That, and getting in the habit of using a sandboxed version of Windows Explorer will make it easier to sandbox just about anything that runs in your XP.
Using a sandoxed Explorer is a good thing even if you were using the old paid version, so, its good to use one. Think of this, the most secure way to run anything with Sandboxie, is to navigate to the file or program using a sandboxed Explorer. That has always being like that.
And 2. There are right now 2 Sandboxie Open source projects.
Sandboxie Technologies (SBIE Open source) | Wilders Security Forums
Sandboxie Plus (Sbie fork) | Wilders Security Forums
Tom's project won't have anything for XP. But David, did release a version for XP. My XP died about 4 years ago so I haven't tested it or know how well this version works, or if it does work at all. It is a 32 bits version. I thought I had seen or read about a 64 bits version, but I looked around before writing this post and couldn't find it.
If you like to test the XP version (at your own risk), you can download the installer from either link below. If it works for you, you ll end up with what you used to get with the paid version, but without having to reactivate the license. It is free without the need to buy a license.
Sandboxie Acquired by Invincea | Page 252 | Wilders Security Forums
Release Build form the sources released by Sophos . sandboxie-plus/Sandboxie . GitHub
Personally, I havent tested any version released by David. He is using a leaked certificate, Microsoft is not acting as being bother about it but antivirus programs will likely detect his installers as malware.
So, either use Sandboxie as if it was the frre version, or test David's release for XP. Up to you.
Bo