Micro Focus Studio Enterprise Edition for Windows > Welcome > Product Information > Known Errors and Restrictions > Problem Determination and Diagnostic Tools > Debugging in Visual Studio

Debugging in Visual Studio

You might experience a slight delay when initiating a debug session for a COBOL project. This is caused by the out-of-date checking to determine whether the project requires a rebuild.
You cannot attach the debugger to a 64-bit native process.
The debugger ignores a COBOL watchpoint that is hit if there is no statement following the statement that modifies the data on which that watchpoint is set.
The debugger does not fully support native OO programs. For example, QuickWatch or entering data names in the Watch window displays an error.
If your application receives a raceOnRCWCleanup (managed code debugger assistant) while debugging, this could be because your WPF application is not performing any closed/shutdown handling. To resolve this, add the following method in the App.xaml.cbl source:
```
       method-id OnExit protected override.
       
       procedure division using by value e as type ExitEventArgs.
           invoke super::OnExit(e) 
      *>   Insert any other closedown code before the stop run statement. 
       
           stop run. 
       
       end method.  
```
For more information see http://msdn.microsoft.com/en-us/library/ms743714.aspx#Application_Shutdown
A core dump file is not created for a stack overflow condition.
If your project includes more than one program and you hover data items in a program that is not the current program being debugged, you may get the wrong values in the debug tooltip or no debug tooltip at all. This is because the context is the current program being debugged. This is expected and is the default Visual Studio behavior.
To point which program is the current context:
1. Start debugging your project and step into the code.
2. Click Debug > Call Stack to display the call stack.
  The program being debugged is indicated by a yellow arrow. This program is also the current context.
3. Continue stepping the code till the call stack list is populated with the other programs in your application.
4. Double-click the program you wish to query in the call stack list.
  This adds a green arrow in front of the program in the list to indicate it is the current context.
5. In the editor, open the program or the copybook which contains a reference to the item you want to query.
6. Hover a data item.
  The debug tooltip should display the correct value.