exe2swf 工具(Adodb.Stream版)

'exe2swf工具，
'用法：将exe格式的flash拖放在此文件上，即可生成swf文件，
'haiwa@http://www.51windows.Net
'感谢jimbob提供帮助.
dim AsoR,FlashFileName
Set ArgObj = WScript.Arguments

dim PositionStart,OKed,Tag,EndSize
PositionStart = 920000'flash 4的播放器的大致字节数
EndSize = 8    'exe文件结尾字节数,其它版本可以设置为0
FlashFileName = ArgObj(0)'传递路径

set AsoR=CreateObject("Adodb.Stream")
AsoR.Mode=3 
AsoR.Type=1 
AsoR.Open 
set AsoW=CreateObject("Adodb.Stream")
AsoW.Mode=3 
AsoW.Type=1 
AsoW.Open
AsoR.LoadFromFile(FlashFileName)

OKed = true
dim filesize
filesize = AsoR.size

if filesize>PositionStart then
    while OKed
        AsoR.Position = PositionStart
        Tag = Bin2Str(AsoR.read(20))
        if instr(Tag,"0000000") >0 then
            PositionStart = PositionStart + 1
        else
            PositionStart = PositionStart + 20
        end if
        if Tag = "00000000000000000708783" or Tag = "00000000000000000678783" then
            OKed = false
        end if
        'if  PositionStart > filesize then
        '    OKed = false
        'end if
    wend
else
    msgbox "文件错误"
end if
PositionStart = PositionStart + 16
'msgbox PositionStart
AsoR.Position = PositionStart
AsoW.write AsoR.read(filesize-int(PositionStart)-int(EndSize))

'新文件名
dim newFileName
'newFileName = left(FlashFileName,len(FlashFileName)-4) & ".swf"
newFileName = FlashFileName & ".swf"

Set fso = CreateObject("Scripting.FileSystemObject")
If (fso.FileExists(newFileName)) Then
    overwrite = msgbox(newFileName&" 已存在"& vbnewline &"要替换它吗?",308,"文件已经存在 - exe2swf脚本")
    if overwrite=6 then
        AsoW.SaveToFile newFileName, 2
    else
        msgbox "操作被取消",0,"exe2swf脚本"
    end if
else
    AsoW.SaveToFile newFileName, 1
end if

AsoR.close
set AsoR=nothing
AsoW.close
set AsoW=nothing

Function Bin2Str(Bin)
    Dim I, Str
    For I=1 to LenB(Bin)
        clow=MidB(Bin,I,1)
        if ASCB(clow)<128 then
            Str = Str & (ASCB(clow))
        else
            I=I+1
            if I <= LenB(Bin) then Str = Str & (ASCW(MidB(Bin,I,1)&clow))
        end if
    Next 
    Bin2Str = Str
End Function