Inforix is a very useful utility which count size of subdirectories and show the result in foolproof way. It can be called from shell extension of Windows explorer (right button click submenu), from Windows start menu or using command line.
LicenseFree to try
File Size523.47 kB
Operating System Windows XP Tablet PC Edition 2005 Windows 2000 SP 3 Windows 7 32-bit Windows XP Windows Server 2008 Datacenter Windows Windows Server 2003 x64 R2 Windows 2003 32-bit Windows XP Itanium 64-bit SP 1 Windows Server 2008 x86 Windows XP 64-bit SP 2 Windows XP 32-bit Windows 7 Windows 2003 Windows Server 2008 Itanium Windows 7 64-bit Windows 2000 Advanced Server Windows XP Media Center Edition 2005 Windows XP Home Edition Windows Vista Windows Vista Business Windows Vista Home Basic Windows 2003 Itanium 64-bit Windows XP Media Center Edition 2003 Windows Vista 32-bit Windows Vista Itanium 64-bit Windows XP SP 2 Windows 2000 Professional Windows 2000 Windows 2003 SP 1 Windows Server 2008 Standard Windows Server 2008
System Requirements2 Mb disk space