In tip 6812, I described how the treatment of numerical values in the sort sequence has changed in Windows XP, and how you could configure Windows XP SP1 to revert to the Windows 2000 treatment.

You can add a Sort file lists by real text instead of number values option to the Windows Explorer Tools / Folder Options / View menu, so that you can toggle the setting and have it become immediately effective:

1. Copy / Paste the following to a ToggleNoStrCmpLogical.reg file:

Windows Registry Editor Version 5.00

\[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\Folder\FileListSort\]
"Type"="checkbox"
"Text"="Sort file lists by real text instead of number values"
"HKeyRoot"=dword:80000001
"RegPath"="Software\\Microsoft\\Windows\\CurrentVersion\\Policies\\Explorer"
"ValueName"="NoStrCmpLogical"
"CheckedValue"=dword:00000001
"UncheckedValue"=dword:00000000
"DefaultValue"=dword:00000000

\[HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\]
"NoStrCmpLogical"=dword:00000000

2. Merge the ToggleNoStrCmpLogical.reg file with your registry, or run regedit /s ToggleNoStrCmpLogical.reg.

3. Restart Windows XP.