Microsoft CEO: Merger Strategy Unchanged  LISBON (Reuters) - Microsoft Corp. &lt;A HREF="http://www.reuters.co.uk/financeQuoteLookup.jhtml?ticker=MSFT.O qtype=sym infotype=info qcat=news"&gt;MSFT.O&lt;/A&gt; is still  targeting smaller companies for acquisitions, despite  speculation that now-scuttled merger talks with business  software giant SAP AG &lt;A HREF="http://www.reuters.co.uk/financeQuoteLookup.jhtml?ticker=SAPG.DE qtype=sym infotype=info qcat=news"&gt;SAPG.DE&lt;/A&gt; signaled a shift in strategy,  Chief Executive Steve Ballmer said on Tuesday.