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One Small Landing, Another Giant Leap For Mankind

I have vague memories of watching the Apollo moon mission in 1969 at age 6. I remember my father sitting with me on the sofa and telling me how history was being made as we watched Neil Armstrong take his first step on the moon. Later, we watched in high Read More...
Posted Sunday, May 25, 2008 10:43 PM by pmehner | 0 Comments

Vista SP1 for my 64-bit OS has fallen and it can’t get up!

Vista SP1 for the 64-bit version of the OS has fallen on my computer, and it can’t get up! I’ve been without my primary computer now for several days due to the release of SP1 for Vista. The symptom is an infinite loop of installations and failures of Read More...
Posted Tuesday, April 29, 2008 1:15 AM by pmehner | 2 Comments
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Security Implications Of Services Impersonating Callers

In my last post ( Caller Impersonation for WCF Services Hosted Under IIS Appears Broken ), I laid out my rationale for why I felt that the security of services impersonating a caller when hosted under IIS was broken. To be responsible, I feel it necessary Read More...
Posted Sunday, December 23, 2007 12:47 AM by pmehner | 0 Comments

Caller Impersonation for WCF Services Hosted Under IIS Appears Broken

There is a security feature of WCF services hosted under IIS that I find poorly implemented. In all honesty, it appears to be broken and non-compliant with its intended purpose. If you’re developing services for use in the intranet environment, then it’s Read More...
Posted Sunday, December 16, 2007 9:26 PM by pmehner | 2 Comments

Ten Tricky Timer Testing Tips

The following are tips for testing Windows Workflow Foundation instances that contain delay activities (timers) when used in conjunction with a passivation store. This list of tips is certainly not exhaustive, but I believe that I’ve accumulated enough Read More...
Posted Tuesday, October 16, 2007 2:48 PM by pmehner | 1 Comments
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A Workflow Error One Should Never See In A Dialog

I was surprised to receive a "Property value is not valid" error dialog when assigning a Ruleset to a Policy activity. There was nothing particularly unusual about this action other than the fact that the workflow itself seems to be pressing the limits Read More...
Posted Thursday, August 23, 2007 12:59 AM by pmehner | 0 Comments
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A Tale Of The Unhandled Workflow Exception

Workflow Foundation (WF) catches the unhandled exceptions of any workflow instance that it’s charged with running. Upon catching the unhandled exception of a workflow instance, WF terminates it and raises a WorkflowTerminated event where it generously Read More...
Posted Tuesday, August 07, 2007 12:27 AM by pmehner | 0 Comments
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