ADS probably does not slow down your system.

To get rid of Alternate Data Streams on any file, move to a non NTFS media,
like a floppy, a CD or a memory stick and then move the file back to the
hard drive. ADS can only exist on NTFS formatted drives, moving or copying
files strips the files of the ADS crap.

You get Confirm Stream Loss messages when copying files with ADS to non-NTFS
formatted media...

Confirm Stream Loss
-----------------------
The file 'xxxxxxxxxxxxx.zzz' has extra information
attached to it that might be lost if you continue copying. The
contents of the file will not be affected. Information that might be
lost includes:
Summary Info
Document Summary Info

Do you want to proceed anyway?
-----------------------

Click YES because there is nothing you can do about it.

--
Hope this helps. Let us know.

Wes
MS-MVP Windows Shell/User

In news:790E5795-6EFE-40EE-93C2-150D3DD87F10@microsoft.com,
Mike Hoban <MikeHoban@discussions.microsoft.com> hunted and pecked:
> Hello, I am looking for advice on how to locate and remove Alternate data
> Streams from jpeg files. They during in my virus scan, but no where else.
> I fear they are causing my system to slow down considerably.
> thanks
>
> --
> Mike H