• Windows Mobile Team Blog

    What's A "Compaction Thread"?

    • 241 Comments
    I've received a few questions from users who have said that their WM5 device seems to slow down and speed up erratically. (To be clear, we've only heard reports of this happening on two upgrade devices, and not on any of the devices designed specifically...
  • Windows Mobile Team Blog

    Setting up GPS on Windows Mobile 5

    • 215 Comments
    Ever have trouble setting up a GPS device on Windows Mobile 5? Ever wonder what that GPS control panel really does? Well, wonder no more... Windows Mobile 5 introduced a new feature called the GPS Intermediate Driver which allows multiple apps to share...
  • Windows Mobile Team Blog

    Why did we remove Bluetooth DUN?

    • 214 Comments
    I’m Greg Scott and I work as a developer on a team that provides core networking technologies on Windows Mobile. There has been some [negative] feedback from the community about Bluetooth dial-up networking (DUN) being removed in WM5 AKU3. I’ll do my...
  • Windows Mobile Team Blog

    Adding Root Certificates for Exchange Activesync

    • 205 Comments
    How can I add root certs to my Windows Mobile 5.0 device? In WM 5.0, the certchk tool no longer works for disabling SSL certificate verification on the Exchange ActiveSync connection. What are the options for secure connections to the server? ...
  • Windows Mobile Team Blog

    WiFi Did You Do That?

    • 201 Comments
    Having survived explaining why the X button doesn’t close apps, I’ve been emboldened to take on the completely radioactive subject of why WiFi ActiveSync was removed from ActiveSync 4. I’m sure that I won’t come out of this one unscathed. The people affected...
  • Windows Mobile Team Blog

    The Emperor Has No Close

    • 194 Comments
    I’ve done blog entries on compaction threads, memory consumption, difficulties in doing upgrades, voice command not working over bluetooth, and 240x240 screens. Now I’m going to do one on why the little “X” button on PocketPCs doesn’t close apps. Am I...
  • Windows Mobile Team Blog

    Zune + Windows Mobile = Better Together?

    • 171 Comments
    What are some ways the Zune player and a Windows Mobile device can work better together? I'm not referring to an imaginary "Zune phone", and I'm certainly not hinting or speculating about a converged device. Instead, I'm wondering if there are any...
  • Windows Mobile Team Blog

    Windows Mobile 6 Storage Card Encryption FAQ

    • 161 Comments
    My colleague Jason Langridge wrote a post about the storage card encryption feature in WM6. This is one of the features I worked on, so I'd like to host some FAQs about it here. What scenario is the feature designed to mitigate? It's fairly easy...
  • Windows Mobile Team Blog

    Whither Voice Command Over BTh?

    • 161 Comments
    I had a request to do a blog entry explaining why Voice Command doesn't work over Bluetooth (BTh) headsets. The long story is a sordid tale of love, betrayal, and the number 8. The short story is that the current version of Voice Command relies...
  • Windows Mobile Team Blog

    Everything You Want To Know About SD...

    • 154 Comments
    ... and weren't afraid to ask. There have been a number of questions about SD memory cards. This is a big topic, so I'll cover what I can and then see what questions come back. I'll either answer those questions in the comments or I'll do a second...
  • Windows Mobile Team Blog

    How to add your own root cert via CAB file

    • 146 Comments
    This post will explain how to install a root cert on a one tier device via a CAB file. For explanations of why you would want to add a root cert and alternate methods of doing so, see the discussion of root certs with Exchange ActiveSync. This method...
  • Windows Mobile Team Blog

    Customizing the Sliding Panel Homescreen

    • 143 Comments
    Hi, my name is Jorge Peraza; I am a Developer on the Windows Mobile team that was responsible for the new “Sliding Panel” home screen in Windows Mobile 6.1. When we were working on the visual style and functionality of the home screen we tried to...
  • Windows Mobile Team Blog

    Why Can't I Upgrade?

    • 143 Comments
    We released Windows Mobile 5 a few months ago and devices are starting to hit the market now. A question I've seen asked in a number of places is, "Why can't I upgrade my existing WM 2003 SE devices to WM5?" The answer is sure to get me a bunch of...
  • Windows Mobile Team Blog

    Input Tips and Tricks

    • 142 Comments
    I'm an input junkie. I type in Dvorak on the desktop. I wrote an app to control the desktop mouse with an XBox 360 gamepad. I wrote all of the input bus drivers for the Sega Dreamcast. I once wrote a driver for a chording data puck because I thought the...
  • Windows Mobile Team Blog

    Why Persistent Storage Is A Good Thing

    • 135 Comments
    Here's a quick primer on why you want Persistent Storage on your Pocket PCs. Persistent Storage (PS) on PocketPC is new for Windows Mobile 5.0. (All Smartphones since the original 2002 release have had PS.) Previously, your user data (email, contacts...
  • Windows Mobile Team Blog

    Practical Use of MAPI

    • 132 Comments
    Practical Use of MAPI Hi everyone, I’m Jay Ongg, ready to do more with MAPI. Last time , I wrote a function that displays the names of all the message accounts on your device. In this article, I’ll go a little bit further. I’ll talk a bit about how...
  • Windows Mobile Team Blog

    Getting Started with MAPI

    • 129 Comments
    Getting Started with MAPI (update 3/22/2007 1:59pm: see comments for .NetCF equivalent) I’m Jay Ongg, and I’m a developer for Mobile Devices at Microsoft. I’ve been in this division for a little over four years, and as part of my job, I work...
  • Windows Mobile Team Blog

    Who's Using My RAM?

    • 125 Comments
    (Note: If words like "RAM" and "ROM" and "XIP" look strange to you, there is an entry here that explains their meanings.) In my recent " Where's My RAM " entry, I explained why you tend to see a difference between what the WM5 device reports as "Total...
  • Windows Mobile Team Blog

    Send me a message

    • 123 Comments
    Hi! I'm the development lead for Messaging User Interface on the PocketPC and Smartphone. In a previous life, I was a developer on Pocket IE as well as a dev lead on Windows Media Player (the desktop version). I'd like to put the question out to the...
  • Windows Mobile Team Blog

    Windows Mobile 5.0 Security Model FAQ

    • 121 Comments
    Windows Mobile 5.0 Security Model FAQ...
  • Windows Mobile Team Blog

    Internet Explorer Mobile 6

    • 121 Comments
    Today at Tech•Ed EMEA we announced the availability of emulators and documentation for Internet Explorer Mobile 6, which is the next generation browser for Windows Mobile. Available on new Windows Mobile devices soon, this browser will provide a high...
  • Windows Mobile Team Blog

    Windows Mobile SDK Samples: Your feedback is important to us!

    • 110 Comments
    Howdy. I own the SDK samples for the Windows Mobile SDK… and I would like to get a feel for what you think of the current SDK samples. In the past there has been concern that there were not enough samples on the SDK. When we released Windows Mobile 5...
  • Windows Mobile Team Blog

    Virtual Earth Mobile 1.64

    • 108 Comments
    If you use Virtual Earth Mobile, you may have recently noticed that a few features stopped working when the Virtual Earth website updated its server software. Specifically, Driving Directions and Business Search were broken. Attached to this post is version...
  • Windows Mobile Team Blog

    What would you do with $100?

    • 107 Comments
    We go through this exercise during the planning stages with customers sometimes. I like it because "to ship is to choose" - it's easy to describe things you want, but we have to ship the product eventually and some things don't make it. Deciding what...
  • Windows Mobile Team Blog

    Power to the People

    • 102 Comments
    In 2002 when we released our first Smartphone OS, there were quite a few fundamental differences between the Smartphone and the PocketPC. Since then, we've been working to unify the platforms. In WM5, we did a bunch of plumbing work to this end, and brought...
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