strange attachment

[Jurek]

Hello
When I reply or forward emails my Outlook attach replyed mail in a format as
below, and I have to remove it manually.
Is there any way to check or uncheck somethign to remove this forever.
Many thanks in advance for all sugestions

Jurek
+/v8APAAh-DOCTYPE HTML PUBLIC +ACI--//W3C//DTD HTML 4.0

Transitional//EN+ACIAPg- +ADw-HTML

xmlns+AD0AIg-http://www.w3.org/TR/REC-html40+ACI- xmlns +AD0-

+ACI-urn:schemas-microsoft-comfficeffice+ACI- xmlns:w +AD0-

+ACI-urn:schemas-microsoft-comffice:word+ACI- xmlns:st1 +AD0-

+ACI-urn:schemas-microsoft-comffice:smarttags+ACIAPgA8-HEAD+AD4APA-TIT

blabla