What does it do?

Folder Size for Windows adds a new column to the Details view in Windows Explorer. The new column shows not only the size of files, but also the size of folders. It keeps track of which folders you view, and scans them in the background so you can see complete size of all files within the folder. It's very useful for cleaning up your disk. Once you get used to having that information available, a directory listing simply looks incomplete without it!


Folder Size is Free

Folder Size for Windows may be distributed under the terms of the GNU General Public License. This basically says that it's free for anyone to use, and the code is free to be read and used, but if you modify the code at all, you must submit your improvements back to the project so everyone can use them.

So far, Kirill Müller has submitted a patch that fixes the sorting and adds new columns, and Markus Cozowicz is reviewing the code for future improvements.

Translations have been submitted by a bunch of people.

Additional Notes

Folder Size for Windows runs on Windows 2000 and XP, though has been tested almost exclusively on Windows XP. Sorry, not Vista.

Folder Size for Windows is split up into three components: The service which caches folder size information and makes it available to other processes; a column handler shell extension that makes a column available to Windows Explorer using data retrieved from the service, and a control panel for configuration.

Folder Size for Windows is written in C++ using Microsoft Visual Studio .NET 2003. See the source code!