Skyline如何代码记载本地坐标系的WMS服务？？

ArcGIS Server 10.1发布自定义本地坐标系（ArcGIS Server默认发布为EPSG:4326坐标系）wms服务；
Skyline加载的MPT坐标系与WMS一致，通过TE Pro加载自定义服务，经测试显示正常，但是通过代码加载就显示不出来，希望各位大侠能帮个忙，代码如下：

        double xul = 483368.115723;
        double yul = 3572658.091919;
        double xlr = 509584.872925;
        double ylr = 3557745.511292;

        //微调后配置
        string wmsStr = "[INFO]" + "\n" + 
                  "MPP=2.68220901489258E-06" + "\n" +
                  "Url=" + "http://localhost:6080/arcgis/services/MyMapService/MapServer/WmsServer?request=GetMap&Version=1.1.1&Service=WMS&SRS=EPSG:101&BBOX=483368.11572300002,3557745.5112919998,509584.87292499997,3572658.0919189998&HEIGHT=256&WIDTH=256&Layers=0&Styles=default&Format=image/png" + "\n" +
                  "xul=" + "483368.115723" + "\n" +
                  "ylr=" + "3557745.511292" + "\n" +
                  "xlr=" + "509584.872925" + "\n" +
                  "yul=" + "3572658.091919" + "\n";

        ITerrainRasterLayer65 imgLayer = sgworld.Creator.CreateImageryLayer("WMSTest", xul, yul, xlr, ylr, "<EXT><ExtInfo><![CDATA[" + wmsStr + "]]></ExtInfo><ExtType>wms</ExtType></EXT>", "gisplg.rct", "", "WMSTest");
        imgLayer.CoordinateSystem = sgworld.Terrain.CoordinateSystem;
        //ICoordinateSystem65 coords =  imgLayer.CoordinateSystem;

希望知道的大侠可以帮忙解决。。。。