Ok, after some testing using the Network tutorial
, I found that on my 64-bit system and on a 32-bit VM, it removed Network from all Windows Explorer and the smaller Open, Save As type windows. I just had to close and reopen the window afterwards to apply, but some may need to restart or log off and on instead to apply.
Normally any changes made in the HKCR registry section will make changes in all the others as well. I'm not sure why yet it would not work for you the same way. I have not seen any reports from anyone else, but would like to hear from them if they are seeing what you are as well to see what may be the issue.