Excel Search in subfolders - vbscript

Question

Using the following code that I pulled from the web, I'm able to do a search in a single directory for excel files containing a string in a certain row. How would I allow this to be recursive in all the subfolders as well? I've found a few answers but I just don't understand how I would implement them in my code. I only started messing with VBScript yesterday and I'm pretty confused about how to make this work.
strComputer = "CAA-W74109188"
Set objExcel = CreateObject("Excel.Application", strComputer)
Set objWMIService = GetObject("winmgmts:\\" & strComputer & "\root\cimv2")
Set FileList = objWMIService.ExecQuery _
("ASSOCIATORS OF {Win32_Directory.Name='c:\TDRS'} Where " _
& "ResultClass = CIM_DataFile")
For Each objFile In FileList
If (objFile.Extension = "xlsm" or objFile.Extension = "xls") Then
Set objWorkbook = objExcel.Workbooks.Open(objFile.Name)
Set objWorksheet = objWorkbook.Worksheets(1)
If objExcel.Cells(3,10) = "Complete" or objExcel.Cells(3,9) = "Released" Then
Wscript.Echo objFile.FileName
End If
objExcel.DisplayAlerts = False
objworkbook.Saved = False
objWorkbook.Close False
End If
Next
objExcel.Quit

Answer 1

Here is an script that I used to delete files with, which I have modified for your needs. A recursive function is what you need to get the job done and I have always found them to be interesting and kind of hard to wrap my head around.
Dim Shell : Set Shell = WScript.CreateObject( "WScript.Shell" )
Dim oFSO : Set oFSO = CreateObject("Scripting.FileSystemObject")
Dim objExcel : Set objExcel = CreateObject("Excel.Application")
Dim Paths(0)
Paths(0) = "c:\temp"
For Each Path in Paths
FolderScan(Path)
Next
Sub FolderScan(Folder)
Set base = oFSO.GetFolder(Folder)
If base.SubFolders.Count Then
For Each folder in Base.SubFolders
FolderScan(folder.Path)
Next
End If
Set files = base.Files
If files.Count Then
For Each File in files
If LCase(oFSO.GetExtensionName(File.Path) = "xlsm") or _
LCase(oFSO.GetExtensionName(File.Path) = "xls") Then
Dim objWorkbook : Set objWorkbook = objExcel.Workbooks.Open(File.Path)
Dim objWorkSheet : Set objWorkSheet = objWorkbook.Worksheets(1)
If (objExcel.Cells(3,10) = "Complete" or _
objExcel.Cells(3,9) = "Released") Then
Wscript.echo File.Path
End if
objExcel.DisplayAlerts = False
objExcel.Quit
End If
Next
End If
End Sub

Answer 2

Here's a generic, recursive function that iterates all files and subfolders of a given folder object.
Dim FileSystem
Set FileSystem = CreateObject("Scripting.FileSystemObject")
DoFolder FileSystem.GetFolder("c:\somefolder")
Sub DoFolder(Folder)
Dim SubFolder
For Each SubFolder In Folder.SubFolders
DoFolder SubFolder
Next
Dim File
For Each File In Folder.Files
' Operate on each file
Next
End Sub