Use the integrated file browser to navigate to the folder containing the VBScript file. Highlight the VBScript file, which has a VBS extension, and click "Open" to open it in WordPad. Edit the script.

If you already have a VBScript file you want to which you want to append the new function, open it in Notepad. Create a file system object variable and open the file.

programmatically access the file system and create, modify, delete, open, and close files for different purposes. To open/create a file in VBScript, you must create a handle on the FileSystemxxx ...

Renegade's Random Tech weblog has a simple how-to for converting batch or .VBS scripts into executable forms using a lesser-known Windows program called IExpress.