how to create resource in dll and use the resource in app?

hi guys:
i am coding a small app,and write a dll (with mfc support) with a lot of text file in it.
i edit thedll.rc with notepad,add all text file in the rc file,such as
10002                   TEXTS   DISCARDABLE     "texts\\10002-first.txt"
in reource.h file,i do nothing.
the resource id is from 10002 to 30002(a huge one :));
my text file is acsii file and not more than 10kb.
in app,i use these code to load resource text:
            hRsrc=FindResource(hInstance,MAKEINTRESOURCE(10002),"TEXTS");
            hGlobal = LoadResource(hInstance, hRsrc);
            LPVOID pdata = LockResource(hGlobal);  
            LPBYTE sData = (LPBYTE)pdata;
            CString strTemp=(CString)(sData);
            FreeResource(hRsrc);
then compiled dll project and app project,all seems ok.
when the app running and load reosurce,sometimes it works fine,but sometimes it loads 2 or more text resources.(it loads 2 or three text files)
why? what's wrong with it?
can anyone tell me?
thank you guys ahead
johns