Consider the following scenario:

• You are running a Windows Vista-based computer.
• In Windows Explorer, you try to copy a file that contains extended attributes from an NTFS volume to a FAT volume.

In this scenario, you receive the following error message:

Copy File
Invalid MS-DOS function.
File Name
Type: File Type
Size: File Size
Data modified: Data
Try Again|Cancel

When you click Try Again, you receive the following error message:

Copy File
An unexpected error is preventing the operation. Make a note of this error code, which might be useful if you get additional help to resolve this problem:
Error 0×80004001: Not implemented
File Name
Type: File Type
Size: File Size
Data modified: Data
Try Again|Cancel