Here is a simple tweak on how to add Defrag.exe to the right click context menu.The tweak works only with win. xp and home.

Open Notepad and paste in the following code :

[version]
signature=”$CHICAGO$”
[DefaultInstall]
AddReg=AddMe
[AddMe]
HKCR,”Drive\Shell\Defrag\command”,,,”DEFRAG.EXE %1″

When you are done click Save file as,choose a location,choose to save file as All files and save it as context_defrag.INF
When that’s done, right click on context_defrag.INF file and click install.

Now go to one of your hard drives and right click.You’ll now see Defrag.exe on the right click menu.