How do I show folder size column in Windows 7 Explorer?

OK, this doesn't solve the exact problem that was asked, but this is how I accomplished the task I set out to complete when looking for this answer. I hope this helps others...

Scenario:

I was moving large amounts of files/folders to a new computer and wanted to avoid moving large unnecessary files. I landed on this page because I just wanted to open a folder and see the sizes of all the subfolders so that I could go into the large ones and delete unnecessary files.

Maybe this is what you're trying to do too. This may seem obvious, but here was my workaround:

Solution:

Just open the folder that you want to investigate and in the upper-right you'll see the "Search ..." box.  Just type * (asterisk) in there, hit <Enter> and you'll be shown all files in all subfolders. Just below the search box change the view to "Details" so you can see the file sizes and sort by the "Size" column.

This is how I identified the large files I didn't want across many subfolders.  I didn't really care about the folder sizes, but I thought that's what I needed to solve my problem.

You can do this at any folder level of course, it just takes longer the more folders you're trying to process at once.

Again, doesn't answer the specific question, but might answer the root question of someone who lands on this page.

Side Note:

I love how these forums allow you to mark a reply as an "Answer" or "Helpful" because as with my reply, it's not the answer to the question, but may be very helpful to some.

You'll notice the title of my post is about folder size, not file size.

I think anybody with 1 hour of Windows use knows about Details View and sorting by size.

And what happens when you want to sort Folders?  Right click, Properties to see the size of each one?  What if you have 10,000 folders?  Do you see how absurd this system is?  I wonder what system administrators do, what program they use?  Because nobody in their right mind would use Windows Explorer like that.  They'd spend all day just organizing by size if they had a lot of folders.  And many of us do. 

A good File Manager would be able to sort both folder and file sizes in Details.  But unfortunately Windows Explorer lacks this most basic feature.  Hence my post looking for a program that organizes things with a grain of intelligence. 

TreeSize organizes by size quite well but, because the designers of that have chosen to use a different layout and options than Windows Explorer it takes a while to get used to.  Now you'd have to ask them why they would purposely make it different from the most widely used File Manager on the planet.  Ego?  Pride?  Who knows?  Logic and tech proficiency live on worlds far from each other. 

 Another option I've found is Total Commander but this is way more bizarre in its layout and function than TreeSize.  There must be good programs out there better than TreeSize.  That's why I made this post:  To find them.

There must be some File Managers offered for OS X, especially with the lamo features you pointed out.  Why software designers don't seek to help us organize our work and life on these marvelous digital machines I will never know.  They act like they couldn't care less.  If somebody is more proficient they tend to spend more in that area because it becomes a much bigger part of their life.