This example will show you how to convert all SWF flash movies in the folder into BMP image files

Folder with SWF flash movies:

SWF To Image library is freeware. However you are welcome to purchase 12 months tech support for it and so support development of SWF To Image library.
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Code below will collect all SWF files in the folder and then convert all flash files into BMP images with the same name and .bmp extension

' This example converts all SWF files in the folder into BMP images
' Copy this script to the folder with SWF flash movies and run it
' Script will generate BMP image files using extracted frames from SWF

Set SWFToImage = CreateObject("SWFToImage.SWFToImageObject")

SWFToImage.InitLibrary "demo", "demo"

Dim WshShell, fs, f, fc, f1, tsFile
Set WshShell = WScript.CreateObject("WScript.Shell")

sCurrentFolder = WshShell.CurrentDirectory

Set fs = CreateObject("Scripting.FileSystemObject")
Set f = fs.GetFolder(sCurrentFolder) ' current directory
Set fc = f.Files
Set fs = Nothing

' converting SWF files to BMP image files
For Each f1 in fc
if UCase(Mid(f1.name, InstrRev(f1.name, ".") + 1)) = "SWF" then
SWFToImage.InputSWFFileName = f1.name
SWFToImage.FrameIndex = 1 ' number of frame to extract
SWFToImage.Execute
SWFToImage.SaveToFile Mid(f1.name, 1, Instr(f1.name, ".") - 1) & ".bmp"
End If

Next

Set SWFToImage = nothing

The script code will generate BMP images in the same folder: