Locate only in some directories

Hello,

I have a directorie with many folders and files.
I use the Locatemacro to search for files.
Now i want search only in 3 of the directories.

Whats the best way to do it???

By reading the documentation I suppose...
e.g.

${Locate} "$PROGRAMFILES" "/L=F /M=WinAmp.exe /G=1" "CallBackFunc"

I have read the documentation.
but I have found no way to search only in some directories.

Now I try this:

${Locate} "$DIR\Release" "/L=F /M=$FILENAME" "Stopsearch"
${Locate} "$DIR\References" "/L=F /M=$FILENAME" "Stopsearch"
${Locate} "$DIR\Directories" "/L=F /M=$FILENAME" "Stopsearch" 

but I dont know if it is a good idea...