Explorer Replacement Option

I know it may sound like heresy in this forum but how do I switch back to Windows explorer as the system default. I am running the latest version of DOpus on Windows 7 x64. Help says Preferences contains this option under Launching Opus. I however do not find that option anywhere in Preferences. I love DOpus and have used it for years but I am diagnosing a problem and need to switch back to explorer... temporarily!

Make sure you've got the latest Opus installed (which is currently 9.1.3.4, a forum-only beta version; see the link in my signature), and then go to Settings -> Preferences / Launching Opus / Explorer Replacement.

Opus 9.1.3.0 (the "stable" version currently on the GPSoftware website) hides the Explorer Replacement preferences page on Windows 7.

If you're using Windows 7 you definitely want to be using the beta version of Opus right now (or, if you want to avoid using beta versions, hold off using Opus on Windows 7 until version 9.1.4.0 is released in the next few days/weeks).

Thanks, that did the trick. One minor item I noticed about this version:
The right click context menu "Share With" lists "Specific People" as the last option. When selected, this option does not open the necessary File Sharing dialog to specify the people to share with.

Has this particular problem been resolved?

It doesn't work here on Win7HP x86 or Win7Ult x86 on two separate machines using DOpus 9.5.2.0 after fresh installs of Win7 - no other software installed.