You can find the source code here and a precompiled exe can be found on the downloads page.
Hopefully the program is self explanatory but I will be expanding the readme soon.
Hi, I have problem with steam and sandboxied since steam got updated. 60&t=23888 Regards, Barb.-Hi, i'm currently experiencing the same on the latest version of sandboxie and the latest update of steam.
Are you launching steam on the host first, to ensure updates go thru, then launching it Sandboxed? I tried to remove Steam - it does not help, I deleted the sandboxes-it does not help. Previously, this also occurred when updating the client outside the sandbox, but after removing it all came back to normal.
Hello Connorveevee, Unfortunately, this is not an issue we can reproduce (I tested it again and I did not receive any update popups). Please try creating a new sandbox or deleting contents of your current one.
If all fails, you may want to check the Steam forums for client update issues.
Now the launch of one sandbox on the HDD lasts up to 10 minutes, on SSD a bit faster, but the problem is in constant unzipping, rewriting and installing the Steam update, even if the client is running in the sandbox, the offer to update the Steam is popping up again.
Many university networks and proxies block required ports for Steam operation - please consult your network administrator to ensure the required ports are open if you are using a university network or a proxy.