Article ID: 883261
When you are running Microsoft Windows XP Service Pack 2 (SP2), and you receive a Windows Messenger file from another computer, you may be prompted to either accept or reject the file.
If you accept the file, you may receive the following warning message:
Windows XP SP2 prompts you about a Windows Messenger file if one of the following conditions is true:
Windows XP SP2 offers a set of security technologies that improves the ability of Windows XP-based computers to withstand malicious attacks from viruses and worms.
The following file types are generally considered safe, and you can accept files that have these extensions from someone who is not listed in the Windows Messenger contacts list:
We recommend that you accept only files that you can save to your hard disk. Use an antivirus program to scan the files before you open them.
For additional information about file types that are considered potentially unsafe, click the following article number to view the article in the Microsoft Knowledge Base:
(http://support.microsoft.com/kb/291369/ )Information about the unsafe file list in Internet Explorer 6