Introit - call it whatever, but today I’m recycling an old post. And I have one more little confession. When I started writing a new rehosted app today, I found out my old toolbox FAQ was fairly useless. It was even getting to the point where someone had to post this in the forum : “I...

[Update: This FAQ is outdated and has be rewritten and reposted here: http://blogs.msdn.com/b/tilovell/archive/2011/08/12/wf4-toolbox-updating-the-wf4-toolbox-icon-faq-for-rehosting-and-custom-activities.aspx I'm leaving the original comments here.]

[Cache. Profit. I guess I’m going on 50.] After reading Basic Activity Scheduling and starting to write subclasses of NativeActivity, you may start running into a bunch of really weird or downright incomprehensible error messages. Some samples to whet your appetite: Activity '1: CodeActivity1...