Vista - is it possible to determine file mime type?

Hallo to everybody. I'd like to know if it's possible to loop a folder searching for a specific kind of file based on its mime type and not on its extension. Thanks in advance.

What are you after?

NTFS does not have file attributes that support MIME nor does the
System.IO.FileInfo which Powershell would understand.

Most crawlers map file extension to MIME which will be portable between
OS's, file systems and applications.

bob

"sardinian_guy" wrote:

Let's suppose I have a jpg renamed with another extension, let's say txt. I'd like to know if it's possible to detect the real type of this file.

I sure hope that this doesn't happen often but even if there were a MIME file
attribute how could this be guarenteed someone by accident or otherwise
couldn't change that also.

You'd need to look at the header for this particular type of file. Pretty
much all files that I know such as:

graphics
multi-media
ASCII/UNICODE
Office
EXE/OBJ/DLL/LIB

have a well known header format. Since you're making just a simple check: Is
this a mp3, wmp, ra file for instance you likely could figure this out by
reading less than 64 bytes.

Hopefully someone can chime in with a more direct solution.

bob

"sardinian_guy" wrote:

Thank you very much Bob. I don't have any real problem to face.
It's just a curiosity that I have.