When you download a file in Internet Explorer SP1 (or later), you will receive one of two different download dialog boxes.
Both dialog boxes have been updated to include the file type. If the file type is considered to be potential unsafe, a warning message will explain that the file may contain malicious code that may harm your computer.
NOTE: A file is considered to be potential unsafe if it appears on the Internet Explorer unsafe file list, the MIME type returned by the server does NOT match the cached file name extension, or the file type is defined as executable by the software restriction policy in Windows XP or Windows Server 2003.
The download dialog box for files which are potential unsafe contains:
Some files can harm your computer. If the file information below looks suspicious, or you do not fully trust the source, do not open or save this file.
File name: Filename.ext
File type: Registered file type
From: Name of Server
This type of file could harm your computer if it contains malicious code.
Would you like to open the file or save it to your computer?
When you download a file that is NOT considered to be unsafe, the dialog contains:
Some files can harm your computer. If the file information below looks suspicious, or you do not fully trust the source, do not open or save this file.
File name: Filename.ext
File type: Registered file type
From: Name of Server
Would you like to open the file or save it to your computer?
