http://msmvps.com/blogs/bradley/archive/2006/12/11/third-party-certs-for-phones-revisited.aspxLooking for a third party cert that works with ALL PHONES, ALL THE TIME? https://partner.microsoft.com/global/partner/40027352 Then don't do Godaddy as it does have some limitations... As it will only do 5.0 w/MSFP only.... but if you can limit your phoneenCommunityServer 2008.5 SP2 (Build: 40407.4157)http://msmvps.com/blogs/bradley/archive/2006/12/11/third-party-certs-for-phones-revisited.aspx#413750Tue, 12 Dec 2006 02:31:56 GMTd67277c4-116b-43f1-b688-e9ef184ea916:413750Matt Johnson's Technical Adventures<p>Saw this on Susan's Blog here . This is a great idea for SBS users where the certificate is self-signed</p><img src="http://msmvps.com/aggbug.aspx?PostID=413750" width="1" height="1">http://msmvps.com/blogs/bradley/archive/2006/12/11/third-party-certs-for-phones-revisited.aspx#413722Tue, 12 Dec 2006 02:18:40 GMTd67277c4-116b-43f1-b688-e9ef184ea916:413722Devin L. Ganger<p>Just a note from personal experience: you can, in fact, use the inexpensive GoDaddy certs on a pre-Windows Mobile 5.0+MSFP device, as long as you can upload the root CA and intermediate CA certs to the device. We ran into this precise situation with the T-mobile SDA, which apparently doesn't have an MSFP ROM image available. Once I got the certs exported in the right format (and now I don't remember which format that was), we had no problems getting them installed and getting the device to work.</p> <p>Even though the Smartphone devices can be locked down a lot harder than PocketPC devices, most carriers appear to be avoiding going to that level of lockdown.</p><div style="clear:both;"></div><img src="http://msmvps.com/aggbug.aspx?PostID=413722" width="1" height="1">