The table below lists known third-party Secure Sockets Layer (SSL) certificates from trusted root certification authorities that have a root store presence in Windows Mobile powered devices.

*Prices of third-party SSL certificates vary by company, warranty coverage, encryption level, applications, and many other factors. Please check with the appropriate certification authority to find out specifics on how each SSL product is different.

For Windows Small Business Server 2003 users, GoDaddy offers certificate solutions here.

Certification Authority
SSL Product
Where to Buy
Supported Versions
CyberTrust SureServer Certificate www.cybertrust.com 2003 and 5.0
Entrust.net Standard SSL Certificate www.entrust.net 2003 and 5.0
Enhanced SSL Certificate 2003 and 5.0
Premium SSL Certificate 2003 and 5.0
Geotrust Power Server ID www.geotrust.com 2003 and 5.0
GlobalSign ServerSign SSL Certificate
www.globalsign.com  
 2003 and 5.0
GoDaddy Turbo SSL
www.godaddy.com
 5.0 w/ MSFP only
High Assurance SSL 5.0 w/ MSFP only
Thawte SSL Web Server Certificates www.thawte.com 2003 and 5.0
SSL 123 Certificates 2003 and 5.0
Verisign Secure Site SSL www.verisign.com 2003 and 5.0
Secure Site Professional SSL 2003 and 5.0

Last updated May 8, 2006. The SSL certificates listed on this page are current at the time of this writing. The SSL certificates are products owned by respective certification authorities (CAs). CAs may modify prices, product names, or compatibility of their SSL products at any time without Microsoft’s knowledge. Please make sure to check with individual CAs to verify the accuracy of all information.

Source: https://partner.microsoft.com/global/partner/40027352