http://blogs.msdn.com/b/xwebsupport/archive/2009/09/29/expression-web-studio-2-crashes-on-setup-exception-has-been-thrown-by-the-target-of-an-invocation-cannot-convert-string-pack-application.aspxYes, it’s a long title for a blog, but I’ve got to differentiate the types of setup crashes we have been seeing lately. This one I’ve seen affecting Expression Web 2 and only with computers that have Office 2007 installed on the same machine. Here’s aen-USTelligent Evolution Platform Developer Build (Build: 5.6.50428.7875)http://blogs.msdn.com/b/xwebsupport/archive/2009/09/29/expression-web-studio-2-crashes-on-setup-exception-has-been-thrown-by-the-target-of-an-invocation-cannot-convert-string-pack-application.aspx#10122469Mon, 31 Jan 2011 17:52:22 GMT91d46819-8472-40ad-a661-2c78acb4018c:10122469Edward Lorence Nelson<p>I licked this problem thanks to a hint about potential measurement unit conflict. I went to international setup, changed everything to USA defaults (widths measured in inches), rebooted, installed successfully, changed back to metric|Italy, rebooted and never looked back. </p> <div style="clear:both;"></div><img src="http://blogs.msdn.com/aggbug.aspx?PostID=10122469" width="1" height="1">http://blogs.msdn.com/b/xwebsupport/archive/2009/09/29/expression-web-studio-2-crashes-on-setup-exception-has-been-thrown-by-the-target-of-an-invocation-cannot-convert-string-pack-application.aspx#10058282Sun, 05 Sep 2010 17:20:17 GMT91d46819-8472-40ad-a661-2c78acb4018c:10058282Edward Lorence Nelson<p>I uninstalled/reinstalled .NET Framework 3.5.1 as well as a 700K update to it. I rebooted after uninstall, then fresh installed. Nevertheless this did not overcome exception error and I cannot install MS Web Expression 2, full version, fully paid for. </p> <div style="clear:both;"></div><img src="http://blogs.msdn.com/aggbug.aspx?PostID=10058282" width="1" height="1">