This sample script (WHICH IS PROVIDED AS IS) may help purging files older than n days in a folder

 Just copy the following code to a VBS file (DeleteOldFiles.vbs).

Sample call:

cscript DeleteOldFiles.vbs C:\Windows\Temp 90

The code is:

option explicit

Call DoTheJob()
WScript.Echo "--- end of script execution ---"

Sub DoTheJob
    dim limitDate
    dim formattedLimitDate
    dim folder
    dim strComputer
    dim objWMIService
    dim colFileList
    dim objFile
    dim nbFiles
    dim totalFiles
    dim nbErrors
    dim result
    dim nbDays

    if WScript.Arguments.Count <> 2 then
        WScript.Echo "usage : DeleteOldFiles.vbs <folder> <nb of days ago>"
        WScript.Echo "sample: DeleteOldFiles.vbs C:\Windows\temp 90"
        Exit Sub
    end if

    folder = WScript.Arguments(0)
    nbDays = WScript.Arguments(1)

    'calculate and format limit date
    limitDate = DateAdd("d", -1 * nbDays , Date)

    formattedLimitDate = DatePart("yyyy", limitDate)

    if DatePart("m", limitDate) < 10 then
     formattedLimitDate = formattedLimitDate & "0"
    end if
    formattedLimitDate = formattedLimitDate & DatePart("m", limitDate)

    if DatePart("d", limitDate) < 10 then
     formattedLimitDate = formattedLimitDate & "0"
    end if
    formattedLimitDate = formattedLimitDate & DatePart("d", limitDate)

    'show what will be done
    WScript.Echo "Will remove files from " & folder & " with a date older than " & formattedLimitDate & " (" & nbDays & " days ago)"

    'Get the files and delete the old ones
    strComputer = "."

    Set objWMIService = GetObject("winmgmts:" _
        & "{impersonationLevel=impersonate}!\\" & strComputer & "\root\cimv2")

    Set colFileList = objWMIService.ExecQuery _
        ("ASSOCIATORS OF {Win32_Directory.Name='" & folder & "'} Where " _
            & "ResultClass = CIM_DataFile")

    nbFiles = 0
    totalFiles = 0
    nbErrors = 0

    For Each objFile In colFileList
        totalFiles = totalFiles + 1
        if objFile.CreationDate < formattedLimitDate then
           
            result = objFile.Delete()
           
         WScript.Echo objFile.Name & " - " & objFile.CreationDate & ". Delete Result: " & result
         if result = 0 then
             nbFiles = nbFiles + 1
         else
             nbErrors = nbErrors + 1
         end if
        end if
    Next

    'Show the result
    Wscript.Echo "Total files in folder: " & totalFiles
    WScript.Echo "Deleted files:         " & nbFiles
    WScript.echo "Errors:                " & nbErrors
End Sub