Symptoms

When you open Disk Defragmenter console, the menu options, column headers and the command buttons may appear blank with no text in them. Reinstalling Disk Defragmenter using the DFRG.INF file also may not help.

Resolution

This happens if the Disk Defragmenter resource file is missing or corrupt. To resolve the problem, expand a copy of the file dfrgres.dll from the Windows XP CD-ROM or from an alternate source path. The file dfrgres.dll will be stored in a compressed form in your Windows XP CD, and its file name is dfrgres.dl_  (Note the underscore at the end)

  • Insert the Windows XP CD into the drive
  • Click Start, Run and type CMD.EXE
  • In the Command Prompt, type this command:

expand D:\i386\dfrgres.dl_ -r %systemroot%\system32

  • Type EXIT to quit the Command Prompt.

Note: In the above example, D:\ is your CD-ROM drive-letter. If different drive-letter is assigned to the CD drive in your system, change the drive-letter in the above command accordingly.

Dfrgres.dll - File information

CompanyName Microsoft Corp. and Executive Software International, Inc.
FileDescription Disk Defragmenter Resource Module
FileVersion 5.1.2600.0 (xpclient.010817-1148)
LegalCopyright ©2001 Microsoft Corp. and Executive Software Int'l, Inc.
ProductName Windows Disk Defragmenter
ProductVersion 5.1.2600.0