The .NET add-on performs the following steps before it begins with the execution of a Try Script run: 
               	 
            
 
            	 
            
               -  
                  		  The add-on compiles the .NET Assembly. 
                     		   
                  		   If the compilation fails the add-on does not execute the Try Script. 
                  		   
                  		
               
 
               -  
                  		  The Code Generation Engine generates the BDF/BDH files. 
                     		   
                  		    
                  			 
                  
The engine checks if it has to overwrite old BDF/BDH files. Old files are overwritten only if there has been one of the following
                     changes made to the structure of the .NET test driver: 
                     			 
                     
 
                        				
                        - Changes to 
                           				  VirtualUser, 
                           				  Transaction, 
                           				  TestMethod, 
                           				  TestAttribute, or 
                           				  BdlParameter attributes. 
                           				
                        
  
                        				
                        - Changes to the sequence of a method definition. 
                           				
                        
  
                        				
                        - Changes to the parameter definition of the methods. 
                           				
                        
  
                        				
                        - Changes to code generation options. 
                           				
                        
  
                        			 
                     
 
                     			 
                   If significant changes have been made, the engine checks whether the BDF has been changed manually since it was last generated.
                  If it has been changed, you must specify whether the file can be overwritten. If you select 
                  			 No, the Try Script is not executed. 
                  		   
                  		
                
               -  
                  		  The add-on prompts you to execute the 
                     			 VirtualUser. If there is more than one 
                     			 VirtualUser class in the .NET test driver, you must choose which virtual user is to be executed. 
                     		   
                  		
               
 
               -  
                  		  A temporary project file is generated and configured to run the Try Script. 
                     		   
                  		
               
 
               -  
                  		  The 
                     			 Virtual User Output window is activated. 
                     		   
                  		
               
 
               -  
                  		  The test begins. 
                     		   
                  		
               
 
               -  
                  		  If the 
                     			 Automatically Start 
                        				TrueLog Explorer option setting has been enabled, 
                     			 TrueLog Explorer will launch with the TrueLog of the active Try Script. 
                     		   
                  		
               
 
               -  
                  		  All virtual user output, contingent on options, is printed to the 
                     			 Virtual User Output window.