ffmpeg on windows

Using iis and windows, I downloaded the windows binary from http://sourceforge.net/project/showfiles.php?group_id=7130&package_id=14464 but when i hit the test button, i am getting:

file_exists(c:\ffmpeg\ffmpeg.exe)
is_file(c:\ffmpeg\ffmpeg.exe)
Executing: cmd /c " "c:\ffmpeg\ffmpeg.exe" "-formats" 2>
"C:\data\tmp\g2d1A61.tmp" "
getParameter exec.expectedStatus for core plugin
file_exists(C:\data\tmp\g2d1A61.tmp)
filesize(C:\data\tmp\g2d1A61.tmp)
unlink(C:\data\tmp\g2d1A61.tmp)
Regular Output:
Error Output:
Status: -1 (expected 0)
Executing: cmd /c " "c:\ffmpeg\ffmpeg.exe" "-version" 2>
"C:\data\tmp\g2d1A62.tmp" "
getParameter exec.expectedStatus for core plugin
file_exists(C:\data\tmp\g2d1A62.tmp)
filesize(C:\data\tmp\g2d1A62.tmp)
unlink(C:\data\tmp\g2d1A62.tmp)
Regular Output:
Error Output:
Status: -1 (expected 0)
Executing: cmd /c " "c:\ffmpeg\ffmpeg.exe" "-h" 2>
"C:\data\tmp\g2d1A63.tmp" "
getParameter exec.expectedStatus for core plugin
file_exists(C:\data\tmp\g2d1A63.tmp)
filesize(C:\data\tmp\g2d1A63.tmp)
unlink(C:\data\tmp\g2d1A63.tmp)
Regular Output:
Error Output:
Status: -1 (expected 0)