RESOLUTION
Copy or expand the *.cpl files from the original installation location,
such as the Windows NT CD-ROM.
Windows NT 3.51
Copy the *.cpl file from the Microsoft Windows NT 3.51 CD to the
%SystemRoot%\System32 directory.
Windows NT 4.0
Expand the *.cpl file from the Microsoft Windows NT 4.0 CD. The following
example demonstrates how to expand the file Access.cpl from the Microsoft
Windows NT 4.0 CD into the C:\Winnt\System32 directory:
expand d:\i386\access.cp_ c:\winnt\system32\access.cpl
For additional information about how to manually open the Control Panel folders, click the article number below
to view the article in the Microsoft Knowledge Base:
180025 How to Open Control Panel Folders from the Command Prompt
Type the following line at a command prompt to reregister the icons:
rundll32.exe shell32.dll,Control_FillCache_RunDLL
NOTE: This line is case sensitive. Type it exactly as shown.