When you try to run a file on a Windows 2003 server that you have copied from another location you may receive the error below
Windows 2003 Server has an added security feature that in effect adds a blocked attribute to any copied .exe files.
To resolve this simply right click on the file that you wish to run and select ‘Properties’. In the ‘General’ tab click on the ‘Unblock’ button then ‘Apply’
The files attributes then display as normal and the ‘Unblock’ button is removed.