Debugging vbs files

Use Err or Err. Number and Err. Description to detect and log and maybe even correct errors. If no more problems are expected, insert a line On Error Goto 0 after the custom error handling code to restore the default built-in error handling. It is usually advisable to clean up any leftover objects at the end of the script. Objects like the FileSystem object, Internet Explorer and others may cause memory leaks if they aren't discarded and new instances are being opened all the time.

Quit and end of the program flow. Objects that are "created" inside a subroutine or function should always be discarded at the end of the routine. A known exception to this rule is the Internet Explorer Debug Window discussed before. Ok, so you wrote your script, tested it on your own computer, maybe even on multiple computers, and everything seems to work fine. Does that mean your script is ready to be distributed?

Would I ask if it were? No, we are not done yet. A final screening is necessary to find out the minimum WSH version required to run the script. The WSH version required for a particular command can be found in the page's second table. Write down any required WSH version greater than 1. Now check the VBScript Version Information page's first table to see if the minimum WSH version requirement is met by all client computers you had in mind In case you aren't sure about the client computers, you can make your script itself perform a check, using:.

EXE on a bit Windows. This is especially true when bit external commands need to be executed: a bit MSHTA process simply cannot start a bit external command. Do not discard the objIEDebugWindow object at the end of the script, or your debug window will vanish!

F11 is a good way to examine the execution flow in the most detail. To move faster through code, we show you some other options also. By default, the debugger skips over non-user code if you want more details, see Just My Code. Let's say that you are done examining the SendMessage method, and you want to get out of the method but stay in the debugger.

You can do this using the Step Out command. This command resumes app execution and advances the debugger until the current method or function returns. You should be back in the For loop in the Main method, paused at the SendMessage method call. Press F11 several times until you get back to the SendMessage method call again.

Notice this time that the debugger does not step into the SendMessage method. F10 advances the debugger without stepping into functions or methods in your app code the code still executes. By pressing F10 on the SendMessage method call instead of F11 , we skipped over the implementation code for SendMessage which maybe we're not interested in right now.

For more information on different ways to move through your code, see Navigate code in the debugger. In this article, we use the keyboard shortcuts, because it's a good way to get fast at executing your app in the debugger equivalent commands such as menu commands are shown in parentheses.

In the code editor, scroll down and hover over the Console. The tooltip for the button shows "Run execution to here". The Run to Click button is new in Visual Studio If you don't see the green arrow button, use F11 in this example instead to advance the debugger to the right place. Click the Run to Click button.

Using this button is similar to setting a temporary breakpoint. Run to Click is handy for getting around quickly within a visible region of app code you can click in any open file. When you press Restart , it saves time versus stopping the app and restarting the debugger. The debugger pauses at the first breakpoint that is hit by executing code. Features that allow you to inspect variables are one of the most useful features of the debugger, and there are different ways to do it.

Often, when you try to debug an issue, you are attempting to find out whether variables are storing the values that you expect them to have at a particular time. The value of the variable changes with each iteration of the For loop, showing values of f , then fr , then fre , and so on.

Often, when debugging, you want a quick way to check property values on variables, to see whether they are storing the values that you expect them to store, and the data tips are a good way to do it. In the Autos window, you see variables and their current value.

The Autos window shows all variables used on the current line or the preceding line Check documentation for language-specific behavior. Next, look at the Locals window, in a tab next to the Autos window. The Locals window shows you the variables that are in the current scope , that is, the current execution context. In the main code editor window, right-click the name variable and choose Add Watch. The Watch window opens at the bottom of the code editor.

You can use a Watch window to specify a variable or an expression that you want to keep an eye on. Now, you have a watch set on the name variable, and you can see its value change as you move through the debugger. Unlike the other variable windows, the Watch window always shows the variables that you are watching they're grayed out when out of scope. While paused in the For loop, click the Call Stack window, which is by default open in the lower right pane.

Click F11 a few times until you see the debugger pause in the SendMessage method. Look at the Call Stack window. The Call Stack window shows the order in which methods and functions are getting called. The top line shows the current function the SendMessage method in this app. The second line shows that SendMessage was called from the Main method, and so on. You can double-click a line of code to go look at that source code and that also changes the current scope being inspected by the debugger.

This action does not advance the debugger. You can also use right-click menus from the Call Stack window to do other things. For example, you can insert breakpoints into specified functions, advance the debugger using Run to Cursor , and go examine source code.

For more information, see How to: Examine the Call Stack. While paused in the For loop, click the Call Stack window, which is open by default in the lower right pane.

With the debugger paused in the SendMessage method call, use the mouse to grab the yellow arrow the execution pointer on the left and move it up one line, back to Console. The debugger reruns the Console. WriteLine method you see this in the console window output. By changing the execution flow, you can do things like test different code execution paths or rerun code without restarting the debugger.

Net world and I was told that to debug a vb script file, I could only use messageboxes I doubted it and I was right. This is making my life much simpler :. Just-In-Time debugger window was not opened when run the. Give your Valuable Comments. Please enable JavaScript! Bitte aktiviere JavaScript! Por favor,activa el JavaScript! Home Asp. Categories: General , VBScript. Introduction: In this article I will explain how to run vbscript or. At that time I decided to write a post to explain how to run vbscript file and how to debug vbscript file or.

Now we have vbscript file with name Test. If we want to make modifications in vbscript file then select your vbscript file Ex: Test. Till now we learned how to modify vbscript file and how to run vbscript or. Suppose if I want to debug vbscript file then how I can do that one.