Posted by: Anthony Drewery | November 10, 2005
Windows Mobile 5.0 & ActiveSync
We have a few Windows Mobile 5.0 devices appearing and need to get them hooked up to our Exchange 2003 system. We have the infrastructure already in place as we use Outlook Web Access and Outlook Mobile Accesss. We have our front-end servers load balanced and port 443 mapped through from the outside world.
Like its predecessor Windows Mobile 2003, WM 5.0 lacks a wide selection of trusted root certificates installed by default. If you’re using a non-maintream or self-issued certificate you’ll need to do a little extra configuration to get ActiveSync working over the air. With WM 2003 there was a tool to disable certificate checking but it’s not compatible with WM 5.0. Instead follow these instructions:
In Internet Explorer go to your Outlook Web Access site and ensure your certificate is installed. To check the name of it you can double click on the padlock icon in the bottom right of the browser.
Now in the Internet Options in IE go to the Content tab and click the Certificates button.
Now go to the Trusted Root Certificate Authorities and find your certificate.
Select the certificate and click on the Export button. Follow the wizard and select ‘DER Encoded Binary x.509’ when prompted.
Choose a suitable file name and finish the wizard.
You’ll now need to copy the exported certificate to your PocketPC device either via a memory card or by USB. Once it’s on your PPC simply tap it with the stylus and follow the prompts to install it.
With the certificate successfully installed you should be able to synchronise over the air.