How can I add HTML comments with an URL to an XML file?

Question

I'm working with DocuSign on some email templates that are included on an XML file...

My issue is that I'm trying to add this snippet to that XML, I already substituted the "&" for "&" on the url, but, since the template is supposed to work an look good on most email domains, I need to add HTML comments when it's opened on Outlook desktop (The url won't work, I changed it for security reasons)

<td>
  <!--[if mso]>
  <table width="50%">
    <tr>
      <td><a href="https://www.page.com/en-ca"><img width="620" src="https://page--page.page.page.page.com/page/page.ImageServer?id=0000A0000056se5&amp;oid=00E8E000000F7CG&amp;lastMod=1005000662000" style="text-align: right; width: 207px; border: 0; text-decoration:none; vertical-align: baseline;"></a></td>
    </tr>
  </table>
  <div style="display:none">
    <![endif]-->
    <a href="https://www.page.com/en-ca"><img class="header-image" alt="Omnipod Header" src="https://page--page.page.page.page.com/page/page.ImageServer?id=0000A0000056se5&amp;oid=00E8E000000F7CG&amp;lastMod=1005000662000"></img></a>
    <!--[if mso]>
  </div>
  <![endif]-->
</td>

When I try to add this specific comment, I receive an error saying that the syntaxis is not correct, I was able to isolate the issue, the issue is just on the URL on the comment, when I delete and save, no warning pops up. The idea is the header shows up instead of the one that's not in the comment.

Answer 1

Well after several tries, the solution is to not put two dashes, one dash has to be changed:

'--' > '& # 4 5 ; -' (If I don't leave the spaces it will apear like this --)

With that, the url won't be affected and misread by the XML compiler