MS Office 365/2016 (C2R, Click-to-Run) no longer works with Sandboxie

Since Sandboxie has now got its own forum section and the main thread has become very confusing, I have now opened a separate thread for this problem.

henryg1 and I have the problem that MS Office 365/2016 (C2R, Click-to-Run) no longer works with Sandboxie. The error message 1752 always appears immediately. Even a clean reinstallation of Sandboxie, with the default settings, does not fix the problem.



What could be the cause of the problem? Has Microsoft possibly changed something and Sandboxie needs corresponding adjustments?

Here are the posts from the main thread:
https://www.wilderssecurity.com/thr...ith-signed-driver.434924/page-19#post-2980134
https://www.wilderssecurity.com/thr...ith-signed-driver.434924/page-19#post-2980186
https://www.wilderssecurity.com/thr...ith-signed-driver.434924/page-19#post-2980192
https://www.wilderssecurity.com/thr...ith-signed-driver.434924/page-20#post-2980613
https://www.wilderssecurity.com/thr...ith-signed-driver.434924/page-20#post-2980616
https://www.wilderssecurity.com/thr...ith-signed-driver.434924/page-20#post-2980834
https://www.wilderssecurity.com/thr...ith-signed-driver.434924/page-26#post-2981812
https://www.wilderssecurity.com/thr...ith-signed-driver.434924/page-26#post-2981820
https://www.wilderssecurity.com/thr...ith-signed-driver.434924/page-27#post-2982512

Sandboxie Classic 5.46.2, Windows 10 20H2 (x64), Office 2016 (Click-to-Run)

 

So there is no older Sbie version that would be working?
If there is non than its indeed something MSFT broke and will have to be figured out by us.

 

Thank you very much for your reply.

Unfortunately yes, even with version 5.33.6, with which it had definitely worked once, it does not work anymore now. Looks like Microsoft has changed something about the C2R system.