ms word does not answer to any Add-ins at all

hi,

i newbie , realy need 3 questions have worked on them 2 weeks steel no success.

1. built shared add-in project worked on ms word dont know have changed, after many times debugging ms word not answer add-in project @ , tryed debugg code set "start external program" word.exe , used br
eak points got message
"the breakpoint not hit no symbols have been loaded document".

2. how can insert text custom property word document?

3. have built add-in excel works can not insert text activecell, can see toolbar , button can not insert text.
here litle bit of code:

excel.application excelapp = null;

public void onconnection(object application, extensibility.ext_connectmode c
onnectmode, object addininst, ref system.array custom)
{
  excelapp = (excel.application)application;
  inserttext = makeanewbutton(toolbar, "insert text", 1044, new _commandbarb
 uttonevents_clickeventhandler(inserttext
_click));
}

private commandbarbutton makeanewbutton(commandbar commandbar, string captio
n, int faceid,  _commandbarbuttonevents_clickeventhandle
r clickhandler)
  {
     object missing = system.reflection.missing.value;
     try
     {
        microsoft.office.core.commandbarbutton newbutton;
        newbutton = (commandbarbutton)commandbar.controls.add(msocontroltype
.msocontrolbutton, missing, missing, missing, missing);

         newbutton.caption = caption;
         newbutton.faceid = faceid;
         newbutton.click += clickhandler;
         return newbutton;
      }
      catch
      {
          return null;
      }
   }

public void inserttext_click(commandbarbutton barbutton, ref bool somebool)
{
   if (excelapp != null)
   {
      this.excelapp.activecell.value2 = "sometext";   
   }
}

1. it's possible add-in disabled word. open word, click help-about. in dialog, click button 'disabled items'. if add-in in list, selected , click enable.
   if there nothing in list, open registry navigate hkey_local_machine\software\microsoft\office\word\addins. addin should listed there (most <addinname>.connect). check value of loadbehavior key. should set 3 (load on startup). it's possible registry key @ hkey_current_user instead of hkey_local_machine
   
   
2. to add custom property, think shoud use following code (haven't tested this, don't shoot me if there's error here)
   
   microsoft.office.interop.word.customproperties prps = (microsoft.office.interop.word.customproperties)wordapp.activedocument.customdocumentproperties;
   prps.add("newproperty", "somevalue");
   
   
3. does inserttext_click method gets executed when click button? have variable button declared field of connect class (if goes out of scope, gets collected gc , click stop working)?

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