VBScript FileSystemObject

last modified April 4, 2025

The FileSystemObject (FSO) provides access to a computer’s file system in VBScript. It allows you to create, read, update, and delete files and folders. This tutorial covers FileSystemObject with practical examples for file operations, folder management, and text file manipulation.

FileSystemObject Overview

FileSystemObject is part of the Scripting Runtime library. It provides methods to work with drives, folders, and files. To use FSO, create an instance with CreateObject(“Scripting.FileSystemObject”). The object model includes Drive, Folder, and File objects.

FSO supports text file operations through TextStream objects. These allow reading and writing text files line by line. The library is available on Windows systems by default, making it ideal for automation scripts.

Creating and Writing to a Text File

This example demonstrates creating a new text file and writing content to it. The CreateTextFile method creates the file, while WriteLine adds text. Always close files after operations.

create_file.vbs

Dim fso, file Set fso = CreateObject(“Scripting.FileSystemObject”) Set file = fso.CreateTextFile(“C:\temp\example.txt”, True)

file.WriteLine “This is line 1” file.WriteLine “This is line 2” file.Close

WScript.Echo “File created and written successfully”

The script first creates a FileSystemObject instance. Then it creates a new file at the specified path. The second parameter (True) overwrites existing files. After writing two lines, it closes the file to release system resources.

Reading from a Text File

This example shows how to read content from an existing text file. The OpenTextFile method opens the file, and ReadLine reads content line by line. The AtEndOfStream property checks EOF.

read_file.vbs

Dim fso, file, content Set fso = CreateObject(“Scripting.FileSystemObject”) Set file = fso.OpenTextFile(“C:\temp\example.txt”, 1) ’ 1 = ForReading

Do Until file.AtEndOfStream content = file.ReadLine WScript.Echo content Loop

file.Close

The script opens the file in read mode (1). It then reads each line until reaching the end of file. Each line is displayed using WScript.Echo. Finally, the file is closed properly. Error handling should be added for production use.

Checking File Existence and Properties

This example demonstrates checking if a file exists and accessing its properties. The FileExists method checks existence, while the File object provides properties like size and creation date.

file_properties.vbs

Dim fso, file Set fso = CreateObject(“Scripting.FileSystemObject”) filePath = “C:\temp\example.txt”

If fso.FileExists(filePath) Then Set file = fso.GetFile(filePath) WScript.Echo “File exists” WScript.Echo “Size: " & file.Size & " bytes” WScript.Echo “Created: " & file.DateCreated WScript.Echo “Modified: " & file.DateLastModified Else WScript.Echo “File does not exist” End If

The script first checks if the file exists. If it does, it retrieves the File object and displays several properties. These include file size, creation date, and last modification date. This is useful for file management scripts.

Creating and Deleting Folders

This example shows folder operations using FSO. The CreateFolder method makes new directories, while DeleteFolder removes them. Folder existence can be checked with FolderExists.

folder_operations.vbs

Dim fso Set fso = CreateObject(“Scripting.FileSystemObject”) folderPath = “C:\temp\newfolder”

If Not fso.FolderExists(folderPath) Then fso.CreateFolder(folderPath) WScript.Echo “Folder created” Else WScript.Echo “Folder already exists” fso.DeleteFolder(folderPath) WScript.Echo “Folder deleted” End If

The script checks if a folder exists. If not, it creates one. If the folder exists, it deletes it. These operations are fundamental for directory management. Always verify folder existence before operations to prevent errors.

Copying and Moving Files

This example demonstrates file copying and moving operations. The CopyFile method duplicates files, while MoveFile relocates them. Both methods can overwrite existing files with caution.

file_copy_move.vbs

Dim fso Set fso = CreateObject(“Scripting.FileSystemObject”) sourceFile = “C:\temp\example.txt” destFile = “C:\temp\backup\example_copy.txt”

’ Copy file fso.CopyFile sourceFile, destFile, True ’ True = overwrite WScript.Echo “File copied”

’ Move file newLocation = “C:\temp\archive\example.txt” fso.MoveFile sourceFile, newLocation WScript.Echo “File moved”

The script first copies the file to a backup location, overwriting if necessary. Then it moves the original file to an archive folder. These operations are useful for file organization and backup scripts. Paths must be valid.

Source

FileSystemObject Documentation

In this article, we have explored the FileSystemObject in VBScript, covering file and folder operations. From creating and reading files to managing directories and file properties, these examples provide practical skills for scripting tasks. With this knowledge, you can automate file system operations in your VBScript projects.

Author

My name is Jan Bodnar and I am a passionate programmer with many years of programming experience. I have been writing programming articles since 2007. So far, I have written over 1400 articles and 8 e-books. I have over eight years of experience in teaching programming.

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