Alpha 6 on IIS - Could not unpack package

Hi,

I thought it was about time I tried MODx Revolution on IIS the Alpha 6 install went smoothly and the new manager looks great.

I have tried to install some packages TinyMCE and Captcha these download file however I am seeing these errors.

[2009-02-02 16:57:44] (ERROR @ D:\domains\otrack.com\wwwroot\core\model\modx\transport\modtransportpackage.class.php : 227) PHP warning: filesize() [<a href=’function.filesize’>function.filesize</a>]: stat failed for http://wtf.modxcms.com/downloads/&amp;d=add-ons/captcha-3.0.2-beta.transport.zip
[2009-02-02 16:57:45] (ERROR @ /connectors/workspace/packages.php) Could not unpack package D:/domains/otrack.com/wwwroot/core/packages/captcha-3.0.2-beta.transport.zip to D:/domains/otrack.com/wwwroot/core/packages/. SIG:

Could someone let me know how MODx is attempting to extract the zip files?

Thanks

Sorry ignore that just realised you can right click package and then select install.

Capatcha appears to be corrupted.

Alpha 6 seems a bit cpu intensive?