Ehome in windows directory

Soure

C:\Windows\ehome The ehome directory holds the Media Center applications and files. Windows Version; Bits File Size Modified Date Captured from More XP SP1; 32 13 KB 29-Aug-2002 Core without updates

C:\Windows\ServicePackFiles\i386 This directory is used to hold new files for service packs. It is used by the file protection system to restore key files should they be damaged. Windows Version; Bits File Size Modified Date Captured from More XP SP1; 32 13 KB 29-Aug-2002 Core without updates

Source 

Close Media Center
Click on the Start menu, choose run and type cmd
Now execute the following commands and after each command press the
Enter Key:-
regsvr32.exe atl.dll
C:\WINDOWS\eHome\ehSched /unregServer
C:\WINDOWS\eHome\ehSched /service
C:\WINDOWS\eHome\ehRecvr /unregServer
C:\WINDOWS\eHome\ehRecvr /service
C:\WINDOWS\eHome\ehRec.exe /unregServer
C:\WINDOWS\eHome\ehRec.exe /regserver
C:\WINDOWS\eHome\ehmsas.exe /unregServer
C:\WINDOWS\eHome\ehmsas.exe /regserver

Finally restart Media Center.