Windows Live Mail

Hello all, its been awhile for me and I need help.
My system specs are at the bottom tag.
Here is the issue: Windows Live Mail sends out spam/virus in the body of the mail.
I have 3 mail accounts but this self generating spam only comes from my msn account. All the spam uses my synced contact list and generates email and I'm pasting 1 of the spams message source:
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X-Originating-IP: [223.206.215.34]
X-Originating-Email: [adriangruber29@msn.com]
Message-ID: <BLU0-SMTP221FD16131FADA63AB1386CCA280@phx.gbl>
Received: from [192.168.1.1] ([223.206.215.34]) by BLU0-SMTP221.phx.gbl over TLS secured channel with Microsoft SMTPSVC(6.0.3790.4675);
Wed, 17 Aug 2011 07:59:20 -0700
From: Adrian Gruber
Subject: Yo Microsoft
Date: Wed, 17 Aug 2011 10:58:50 +0000
To: INFOW.WORD.NA.00.EN.CVG.BGL.TS.2ET.P....microsoft.com
MIME-Version: 1.0
Content-Type: text/plain; charset="iso-8859-1"
Content-Transfer-Encoding: 7bit
X-OriginalArrivalTime: 17 Aug 2011 14:59:24.0643 (UTC) FILETIME=[40D2CB30:01CC5CEE]
hows it going Microsoft hopefully you really think it through NBC 7 Online Report - Work At home Mom Makes $10,900/Month Part-Time see you around
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I use MSE and i have the latest update, also I submitted a saved copy of the email to MMCP and Redmond scanned the email but came up with nothing definitive.
I've done 2 full scans with MSE and also Malaware and both AVG recognise no virus.

Hello all, well it seems the batch of spam emails has stopped!.
I deleted the sent emails from the sent folder so I checked over the sent box for the last 2 days and no other spam has been generated.
Again, I stumped as to what kind of virus or attack I sustained and wether its still lurking within my system, but for now I'll mark it solved.