Attaching a debugger to the print filter pipeline service

As you should know by now, Application Verifier (and Print Verifier) works by sending error messages to the debugger that is attached to the associated process. For XPSDrv drivers, the filters are hosted by the print filter pipeline service, so you must attach a debugger to printfilterpipelinesvc.exe. Note: I am making the assumption that you…


Enabling PrintVerifier for XPSDrv

I wanted to use the next couple of posts to cover PrintVerifier in the context of XPSDrv. I don’t plan on covering the workflow involved in debugging individual stops since the troubleshooting steps for stops that you encounter in the XPSDrv scenario are exactly the same as other stops. Identify the stop code from the…


New stops

We just released a new version of Application Verifier. As part of this release, we added a number of stops to Print Verifier. Unfortunately, we neglected to document these stops in the recent release of App Verifier. By the time we discovered this mistake, it was too late for the doc writers to update the…


Unintended hibernation

Sorry for what might have seemed like terminal hibernation. We’ve just been busy working on PrintVerifier and other components of Windows that we haven’t had time to update this blog. We hope to be more active in this space in the coming weeks and months.


PrintVerifier Philosophy

I thought I’d spend the rest of the afternoon penning my thoughts on metaphysics, epistemology and associated topics. Nah! Just kidding! Our philosophy when it comes to PrintVerifier is that when in doubt DO NOT break. In other words, during the verification process if PrintVerifier detects a potential problem but is not 100% certain about the…


WinHEC is almost here

Whew! The long wait is finally over. One last working day before it is time to leave for WinHEC. Eagerly looking forward to meeting everyone and unveiling PrintVerifier.


PrintTicket/PrintCapabilities verification

One of the really cool features in PrintVerifier is runtime verification of PrintTicket and PrintCapabilities documents. Let’s talk a little more about this feature. We have integrated the essence of the PTConform tool into PrintVerifier. While the PTConform tool is invaluable in its own way, it has certain drawbacks. In order to effectively verify the…


What is a verifier stop?

I was in the process of writing up a few blog posts to do with debugging specific PrintVerifier stops when I realized that we haven’t covered the basic concept of a verifier stop. So let’s do that. ======================================= VERIFIER STOP 0000A012 : pid 0xD68: Leaked PrintTicket providerhandle detected 03320FE8 : PrintTicket provider handle being leaked….


PrintVerifier demo

We will be presenting a demo of the PrintVerifier workflow at WinHEC 2007. You can find a screencast of the demo here. The demo illustrates how to enable PrintVerifier for a process and walks you through the troubleshooting steps to be taken for debugging a PrintVerifier stop.


Simple yet powerful

I came across this nugget while reading Steven Sinofsky’s internal blog. I am helping a company design an entirely new approach to one of their standard products. It looks simple. During a user test, one person said that he really liked it, but it was too bad he wouldn’t use it.  “Why not?” we asked. “Because…