http://msmvps.com/blogs/nickwienholt/archive/2007/11/15/wm6-to-vista-sync-error-0x8503001c-fixed-by-going-back-to-wmdc-6-0.aspxI had the frustrating experience of having a new WM6 device ( HTC Touch ) developing a problem synching to a new Vista machine. The Touch was in its third week of a synch relationship with Vista, so it could be hoped that honeymoon bliss was still lingeringenCommunityServer 2008.5 SP2 (Build: 40407.4157)http://msmvps.com/blogs/nickwienholt/archive/2007/11/15/wm6-to-vista-sync-error-0x8503001c-fixed-by-going-back-to-wmdc-6-0.aspx#1408191Thu, 20 Dec 2007 21:38:24 GMTd67277c4-116b-43f1-b688-e9ef184ea916:1408191nick<p>The joys of being the house-hold IT support desk :). &nbsp;Glad the post helped.</p> <div style="clear:both;"></div><img src="http://msmvps.com/aggbug.aspx?PostID=1408191" width="1" height="1">http://msmvps.com/blogs/nickwienholt/archive/2007/11/15/wm6-to-vista-sync-error-0x8503001c-fixed-by-going-back-to-wmdc-6-0.aspx#1407180Thu, 20 Dec 2007 11:12:59 GMTd67277c4-116b-43f1-b688-e9ef184ea916:1407180Craig Bailey<p>You Legend.</p> <p>Had the exact same problem on my wife's Touch.</p> <p>Reverted back to 6.0 as you suggested and it is all working fine again.</p> <p>Many thanks,</p> <p>Craig</p> <div style="clear:both;"></div><img src="http://msmvps.com/aggbug.aspx?PostID=1407180" width="1" height="1">http://msmvps.com/blogs/nickwienholt/archive/2007/11/15/wm6-to-vista-sync-error-0x8503001c-fixed-by-going-back-to-wmdc-6-0.aspx#1395269Thu, 13 Dec 2007 09:33:45 GMTd67277c4-116b-43f1-b688-e9ef184ea916:1395269Nick Wienholt<p>The download URL is <a rel="nofollow" target="_new" href="http://www.microsoft.com/downloads/details.aspx?familyid=83D513EA-9DF9-4920-AF33-3A0E2E4E7BEB&amp;displaylang=en">www.microsoft.com/.../details.aspx</a></p> <div style="clear:both;"></div><img src="http://msmvps.com/aggbug.aspx?PostID=1395269" width="1" height="1">http://msmvps.com/blogs/nickwienholt/archive/2007/11/15/wm6-to-vista-sync-error-0x8503001c-fixed-by-going-back-to-wmdc-6-0.aspx#1394025Wed, 12 Dec 2007 16:31:49 GMTd67277c4-116b-43f1-b688-e9ef184ea916:1394025Steve<p>Where do you get a copy of WMDC 6.0?</p> <div style="clear:both;"></div><img src="http://msmvps.com/aggbug.aspx?PostID=1394025" width="1" height="1">http://msmvps.com/blogs/nickwienholt/archive/2007/11/15/wm6-to-vista-sync-error-0x8503001c-fixed-by-going-back-to-wmdc-6-0.aspx#1350980Fri, 23 Nov 2007 23:50:08 GMTd67277c4-116b-43f1-b688-e9ef184ea916:1350980.NET Performance<p>A couple of weeks ago I purchased the eGlass BookReader from Handango, partly because of the problem</p> <img src="http://msmvps.com/aggbug.aspx?PostID=1350980" width="1" height="1">