Before starting the installation you should consider the following: 
               	 
            
 
            	 
             
               		
               - Visual COBOL and 
                  		  Enterprise Developer cannot coexist on the same machine. 
                  		
               
  
               		
               - If, when you install 
                  			 Visual COBOL for Visual Studio 
                  			 2012, the machine does not have Microsoft Visual C++ 2012 Redistributable Runtime already installed, it is installed as required
                  by 
                  			 Visual COBOL. The installation of Microsoft Visual C++ Redistributable Runtime adds a number of 
                  			 .dll files, without digital signatures, into the 
                  			 winsxs directory. 
                  		
               
  
               		 
               		
               		
               - You need to be logged in with a user-ID that has write access to the registry structure under HKEY_LOCAL_MACHINE, HKEY_CLASSES_ROOT,
                  and HKEY_CURRENT_USER so the installation software can set the environment appropriately. You also need to be logged on with
                  Administrator privileges.