A application/x-ms-dos-executable decoder plugin is required to play this stream, but not installed.

[Thufir]

how do you know which dll is missing?  I followed:

https://help.ubuntu.com/community/RestrictedFormats

Is this a windows virus kinda thing?  why does it need an executable?  
why a dll and not a codec?  how can linux simulate a windows dll?

I also found a bug report:

https://bugs.launchpad.net/ubuntu/+source/totem/+bug/290425

"missing dll" is kinda vague.

thufir at arrakis:~$ 
thufir at arrakis:~$ totem foo.avi.scr 

** (totem:7463): WARNING **: Failed to create dbus proxy for 
org.gnome.SettingsDaemon: Could not get owner of name 
'org.gnome.SettingsDaemon': no such name
** (totem:7463): DEBUG: Init of Python module
** (totem:7463): DEBUG: Registering Python plugin instance: YouTube
+TotemPythonPlugin
** (totem:7463): DEBUG: Creating object of type YouTube+TotemPythonPlugin
** (totem:7463): DEBUG: Creating Python plugin instance
** (totem:7463): DEBUG: Init of Python module
** (totem:7463): DEBUG: Registering Python plugin instance: BBCViewer
+TotemPythonPlugin
** (totem:7463): DEBUG: Creating object of type BBCViewer
+TotemPythonPlugin
** (totem:7463): DEBUG: Creating Python plugin instance
** Message: don't know how to handle application/x-ms-dos-executable
** Message: Error: A application/x-ms-dos-executable decoder plugin is 
required to play this stream, but not installed.
gstdecodebin.c(904): close_pad_link (): /GstPlayBin:play/
GstDecodeBin:decodebin0:
No decoder to handle media type 'application/x-ms-dos-executable'

** Message: Missing plugin: gstreamer|0.10|totem|application/x-ms-dos-
executable decoder|decoder-application/x-ms-dos-executable (application/x-
ms-dos-executable decoder)
no application found
** Message: No installation candidate for missing plugins found.
** Message: don't know how to handle application/x-ms-dos-executable
** Message: Error: A application/x-ms-dos-executable decoder plugin is 
required to play this stream, but not installed.
gstdecodebin.c(904): close_pad_link (): /GstPlayBin:play/
GstDecodeBin:decodebin1:
No decoder to handle media type 'application/x-ms-dos-executable'

** Message: Missing plugin: gstreamer|0.10|totem|application/x-ms-dos-
executable decoder|decoder-application/x-ms-dos-executable (ignoring)
** Message: All missing plugins are blacklisted, doing nothing
** (totem:7463): DEBUG: Finalizing Python plugin instance
** (totem:7463): DEBUG: Finalizing Python plugin instance
thufir at arrakis:~$ 




thanks,

Thufir