windows ".lnk" shortcuts and batches don't mix - batch-file

Question

I have a batch file which is used by dragging a folder containing .mp3s into the batch.
#echo off
cd %~dp0
setlocal enabledelayedexpansion enableextensions
set FLDR="%1"
if not defined FLDR ( echo Drag a folder to the batch to play its contents.
pause
goto:EOF )
for %%x in (%FLDR%\*.mp3) do set "MP3=!MP3! "%%x""
mp3player %MP3%
pause
It works fine with actual folders, but when dragging shortcuts, the variable %FLDR% ends up as "c:\link location\folder.lnk" instead of the actual folder location.
I have no idea how to get around this.

Answer 1

Here is a way to get the target using a little hybrid VBS/Batch file function.
#echo off
setlocal
Call :GetTarget "%~1" tgt
echo %tgt%
pause
exit /b
:GetTarget
#echo off & setlocal
set gt=%temp%\_.vbs
echo set WshShell = WScript.CreateObject("WScript.Shell")>%gt%
echo set Lnk = WshShell.CreateShortcut(WScript.Arguments.Unnamed(0))>>%gt%
echo wscript.Echo Lnk.TargetPath>>%gt%
set script=cscript //nologo %gt%
For /f "delims=" %%a in ( '%script% "%~1"' ) do set target=%%a
del %gt%
endlocal & set %~2=%target%
exit /b

Answer 2

HYBRID SCRIPT! No silly little temporary files.
::'<SUB>#echo off
::'<SUB>set shortcut=%~1
::'<SUB>if not defined shortcut goto 'usage
::'<SUB>if not %shortcut:~-4%==.lnk (if not %shortcut:~-4%==.url (set errorlevel=1
::'<SUB>goto 'usage ))
::'<SUB>if not exist %shortcut% (echo Error: Nonexistent shortcut
::'<SUB>set errorlevel=1
::'<SUB>goto:EOF )
::'<SUB>setlocal
::'<SUB>for /f "delims=" %%T in ('cscript //nologo //e:vbs %~nx0 "%shortcut%"') do set thing=%%T
::'<SUB>endlocal & set shortcut=%thing%
::'<SUB>goto:EOF
:'usage
::'<SUB>echo command-line shortcut redirect utility
::'<SUB>echo Usage: shortcut [file.lnk ^| file.url]
::'<SUB>echo The resulting link will be output to the %%shortcut%% variable.
::'<SUB>goto:EOF
set WshShell = WScript.CreateObject("WScript.Shell")
set Lnk = WshShell.CreateShortcut(WScript.Arguments.Unnamed(0))
wscript.Echo Lnk.TargetPath
Where <SUB> indicates the substitute character.

Answer 3

UPDATE: I found a much fully vbscript solution over at Wayne's World of IT, and modified it slightly to suit my needs:
If WScript.Arguments.UnNamed.Count = 1 Then
strShortcut = WScript.Arguments.UnNamed(0)
Else
WScript.Echo "Please supply the name of an lnk file or directory to read, eg c:\test.lnk or c:\shortcuts"
WScript.Quit(1)
End If
Set objFSO = CreateObject("Scripting.FileSystemObject")
If objFSO.FolderExists(strShortCut) Then
Set objFolder = objFSO.getFolder(strShortcut)
For Each objfile in objFolder.Files
If objfile.type = "Shortcut" Then
Call Readshortcut(objFile.Path, strProperties)
dtmCreationDate = objFile.DateCreated
WScript.Echo dtmCreationDate & "," & strProperties
End If
Next
ElseIf objFSO.FileExists(strShortCut) Then
Call Readshortcut(strShortcut, strProperties)
WScript.Echo strProperties
Else
WScript.Echo "Error: Could not read '" & strShortcut & "'"
WScript.Quit(2)
End If
Set objFSO = Nothing
Function Readshortcut(ByRef strShortcut, ByRef strProperties)
set objWshShell = WScript.CreateObject("WScript.Shell")
set objShellLink = objWshShell.CreateShortcut(strShortcut)
strProperties = objShellLink.TargetPath & " " & objShellLink.Arguments
Set objShellLink = Nothing
Set objWshshell = Nothing
End Function