Workaround - Contact Selector does not work in Browser-based InfoPath forms

While this blog hints otherwise, http://blogs.msdn.com/infopath/archive/2007/02/28/using-the-contact-selector-control.aspx, it is not possible to use the InfoPath Contact Selector control when hosting InfoPath forms in the browser.

To get around this issue, you can either:

1. Move to ASP.NET Pages for your task form
2. Use a dropdown instead in your InfoPath form. You can programmatically populate it as described here: http://www.bizsupportonline.net/infopath2007/programmatically-fill-populate-drop-down-list-box-infopath-2007.htm