I am trying to create a palette of subassemblies that I have created by modifying the stock AutoCAD subassemblies but am running into problems getting them loaded in AutoCAD. I can get the subassembly name, description, image, properties and help file to show up in the palette, but get an error when I try use the subassembly. The error message I get indicates the Subassembly I am trying to use can not be found even though it lists the correct path, dll name and subassembly name in the error message. I think it may have to do with the Resource line in the .atc file for the palette. The example files in the development guide us Module="AeccStockSubassemblyScriptsRC.dll". Does this need to be changed to point to the .dll I created with my modifies subassemblies in it? I thought that this was done by the DotNetClass line previous to the Resource line in the file, but am probably wrong.