Windows XP A to Z - http://www.softwaretipsandtricks.com/windowsxp
Incorrect Sort Order in Windows Explorer
http://www.softwaretipsandtricks.com/windowsxp/articles/83/1/Incorrect-Sort-Order-in-Windows-Explorer
Super Admin
 
By Super Admin
Published on 02/23/2005
 
If you have folders whose name contains digits, the sort order is different in Microsoft Windows 2000 and Windows XP.

Incorrect Sort Order in Windows Explorer

In Windows 2000, the following file and folder names are sorted as shown:
Ie4_01
Ie4_128
Ie401sp2
Ie5
Ie501sp2
Ie6

In Windows XP, the same files and folders are sorted as:
Ie4_01
Ie4_128
Ie5
Ie6
Ie401sp2
Ie501sp2

To change back to the Windows 2000 sort order on a per user basis:

[HKCU\software\microsoft\windows\policies\explorer]
"NoStrCmpLogical"=REG_DWORD:1

To change back to the Windows 2000 sort order on a per machine basis:

[HKLM\software\microsoft\windows\policies\explorer]
"NoStrCmpLogical"=REG_DWORD:1

See here for further information:

http://support.microsoft.com/default.aspx?kbid=318872