IT 230 Week 6 Remote Access Solution

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Computer Science - General Computer Science
 VBScript Modular Programming Lab

 Objective

 In this lab, students will complete the following objectives.

 ·  Create a VBScript program using NotePad++.

 ·  Use procedures to modularize a VBScript program.

 ·  Create a library of procedures.

 ·  Run library procedures from a separate VBScript program.

 Element K Network Connections



 For this lab, we will only need to connect to vlab-PC1 . The computer vlab-PC1 is the computer on the left side while vlab-PC2 is on the right. If you leave the cursor on the PC icon for a few seconds, a tool-tip message will appear indicating the hostname of the PC. Open  vlab-PC1 and log in as Administrator with the password password .



 Note: All captures must be text only — DO NOT capture the NotePad++ application window or the command prompt window. Use copy and paste of text only.

 Task 1: Ensure that the PC_Tests Scripts are in C:\Scripts\

 Open the Windows CLI Using the Desktop or Quick Launch Command Prompt icon. Change Directory  to the C:\Scripts\ folder ( cd \Scripts) . Verify that the files PC_Tests.cmd and PC_Tests.vbs exists in this directory. If the files are absent, they can be extracted from the downloaded Doc Sharing file PC_Tests.zip .

 Task 2: Open C:\Scripts\PC_Tests.cmd in NotePad++



 Open NotePad++ and use File/Open to view the C:\Scripts\PC_Tests.cmd script file in the Editor window.

 An analysis of the PC_Tests.cmd Batch script program is shown on the next page.



 Task 2: Analyze the Batch Script File PC_Tests.cmd

 One of the drawbacks of using VBScript instead of a full-featured programming language such as C++ or Java is the fact that VBScript does not have the capability to clear the command prompt screen. This is one of the things we need to do with our menu-driven PC_Tests program each time the menu is re-displayed. Since we can’t do this in VBScript, we will do it in a Batch script file.

 Look at the PC_Tests.cmd Batch script shown on the right. The script performs the following tasks.


 1. Clear the screen (CLS).

 2. Display the menu .

 3. Prompt the User and store the input into
    choice.

 4. Run the PC_Tests.vbs program and

    send it the choice value (1..5) as an

    argument   (//nologo hides the scripting
    host heading).

 5. When the PC_Tests.vbs program exits

    and returns to the Batch script, execute
    a Pause .

 6. After the user presses a key to end the
    pause, go to the start of the script to
    clear the screen and re-display the
    menu.

 A sample Batch script run of Option 1 is shown below.

 Task 3: Analyze the code in the PC_Tests.vbs Program

 ·  Open the PC_Tests.vbs program in NotePad++. Let’s review some code that can tell us many important things about the computer and the Windows Operating System.  Option 1 from the menu is handled by Case “1” in the Select Case statement . The VBScript code shows how to access the values of Windows Environmental variables using the WScript.Shell object’s ExpandEnvironmentStrings( ) function. Note that the environmental variables must be delimited with the % character. Do a search for Windows Environmental Variables. They can provide a wealth of information about the computer and the operating system.  A Run of this code is shown belo

 ·  Option

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