What does your "Page Files" Add-element currently look like inside <virtualPathProviders> in EPiServerFramework.config?

@Johan - for PageFiles it is:

    <add showInFileManager="true" virtualName="Page Files" virtualPath="~/PageFiles/"
      bypassAccessCheck="false" indexingServiceCatalog="Web" physicalPath="[appDataPath]\PageFiles"
      customFileSummary="~/FileSummary.config" name="SitePageFiles"
      type="EPiServer.Web.Hosting.VirtualPathVersioningProvider,EPiServer" />

OK, I found the source of what I was thinking of... The steps described here:
http://world.episerver.com/Forum/Developer-forum/EPiServer-CMS-version-5/Thread-Container/2008/10/Mirroring---not-authorized-to-create-directories-under-PageFiles/

But in 7 showInFileManager="true" is already set so it doesn't seem like you can use it to see more of Page Files.

So seems like it's just a thing that got changed between 6 R2 and 7. You should never use another page's Page Files so I think it's a good thing to change.

You could build a report if you need to check which pages has a Page Files folder created, you would output pagenames which would make it a lot more useful since the folder names you see in 6 up folder view aren't the page ids.

Thanks Johan.

I'm keen to hear if anyone else knows of a way to allow it.  One of our editors believe that they have been able to view the subfolders of PageFiles in CMS7 - but, when pressed, couldn't be sure that it was a CMS7 site or CMS6 site.

Appreciate, too, that linking to another page's PageFile is not a good idea (as our editors have found out from time to time), but the requirement here is to be able to FIND a resource when the only thing known is the published URI to the resource (which has the PageFile ID but doesn't identify the actual content page).

In the meantime, I will look to write a listing/search over the page files.