I am working on an application, and trying to get it to install itself into the toolbar on the first time it is run.  Using ClientAutomation, I can view existing structures as well as add Custom Buttons.  However, adding a toolbar or button results in the following error:

"The RPC server is unavailable. (Exception from HRESULT: 0x800706BA)"}
    [System.Runtime.InteropServices.COMException]: {"The RPC server is unavailable. (Exception from HRESULT: 0x800706BA)"}
    Data: {System.Collections.ListDictionaryInternal}

I am currently using the 9.0 SDK (mainly to avoid an additional install to update users PCs once this app is done). 

An example of my code is as follows:

                  // Check if toolbar exists
                  int nToolbarCount = doctoolbarmgr.GetToolbarCount();
                  bool foundBar = false;
                  for (int x = 0; x < nToolbarCount; x++)
                  {
                     string strToolbar = doctoolbarmgr.GetToolbarName(x);
                     if (strToolbar == "___ County Tools")
                     {
                        foundBar = true;
                     }
                  }
                  // If not, add it
                  if (!foundBar)
                  {
                     doctoolbarmgr.AddToolbar("___ County Tools", ToolbarPosition.Top);
                  }

                  // See if our custom tool exists & remove if it does
                  int nCustomButtons = doctoolbarmgr.GetCustomToolbarButtonCount();
                  for (int x = 0; x < nCustomButtons; x++)
                  {
                     if (doctoolbarmgr.GetCustomToolbarButton(x).Description == "Certificate Printer")
                     {
                        doctoolbarmgr.RemoveCustomToolbarButton(x);
                     }
                  }

                  String app_path = System.IO.Path.GetDirectoryName(System.Reflection.Assembly.GetExecutingAssembly().GetName().CodeBase);
                  String application = app_path + "\\LFCertificatePrinter.exe";
                  String icon = app_path + "\\print.ico";
                  String parameters = "%(DocumentID)";

                  // Create new custom button
                  CustomButtonInfo mybutton = new CustomButtonInfo();
                  mybutton.Description = "Certificate Printer";
                  mybutton.Command = application + " " + parameters;
                  mybutton.IconPath = icon;

                  int toolid = doctoolbarmgr.AddCustomToolbarButton(mybutton);

                  // Add to menubar
                  ToolbarButtonInfo tbbutton = new ToolbarButtonInfo();
                  tbbutton.Id = toolid;
                  tbbutton.IsSeparator = true;

                  doctoolbarmgr.AddButton("___County Tools", tbbutton, -1);

Thanks for any suggestions if you might have seen this before.  I did see another thread suggesting that the RPC error in another area was caused by antivirus, so I did attempt this with my antivirus turned off to verify it didn't change anything.

Jonathan