When Create Dll

Question

hi every one

 

i create  class library  to get customefunc.dll  then use it in other projects 

 so i create new project and add this customefunc.dll as reference that whats happend

1-i get incentance of class successfully

2- i canot call any private or protected functions or variable 

3-when i debug on new project where i m using dll i can access class and function(in public mode)

that what i dont want i want my dll be closed totally except me

 

 

plz help me