Untrusted Application Launcher

[dangnv.ict]

Hi all,
I installed LDOCE5 on Unbuntu 10.04, but when run file ldoce5.desktop then there a message:

Untrusted Application Launcher
The application launcher "ldoce5.desktop" has not been marked as trusted. If you do not know the source of this file, launching it may be unsafe.

Pro help me!!!

[btedm]

I had a similar problem with a launcher which I had previously used in version 9.10 and which would not work in 10.04. In my case, version 10.04 required the launcher to be marked as an executable. I did this by:
-- open the Nautilus file browser (Places -> Home Folder)
-- browse to find the launch file
-- right click on the file and select Properties
-- select the tab Permissions
-- in execute, put a check on the box "Allow executing file as program"

One can find more information in bug reports found by searching in Ubuntu Search "untrusted application". For example, there is a bug report https://bugs.launchpad.net/ubuntu/+bug/572918

[midcommander]

right click the shortcut, select properties, select tab permissions, in the bottom are mark the execute (allow executing file as program). then close.

[gemme]

right click the shortcut, select properties, select tab permissions, in the bottom are mark the execute (allow executing file as program). then close.

But how can I change permissions if the file is on NTFS drive or a read-only (cd-rom) media? Is there any other way to launch these files (besides copying them...)