<p>It seems that the following piece of HTML is ignored in IE7 but works ok in IE6/FF. It supposes to override all the html links to be opened in the desired frame</p>

<pre><code>&lt;HEAD&gt;   
 &lt;title&gt;LeftPane&lt;/title&gt;   
 &lt;base target="rightFrame"&gt;  
&lt;/HEAD&gt;
</code></pre>

<p>The above code is the header of a left frame that holds an Infragistics UltraWebTree (tree menu) which doesn't support the TargetFrame property.</p>

<p>Is there another way to add the target attribute to all the links elements on the desired page. </p>

<p>Any server or client-side code workarounds?</p>

<p>The site is built on ASP.Net 1.1 and Infragistics V 2.0</p>

<p><strong>Update</strong> 
the web page is aspx an the doctype is </p>

<pre><code>&lt;!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN" &gt;
</code></pre>

The
```
href=""
```
attibute is
mandatory on the base tag
- that's one possible explanation.  You don't say what doctype you're using, but
target is not allowed in strict XHTML
.
Edit: tested it without href and it worked ok... that leaves the doctype, or something else.