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The VBScript language is modeled on classic Visual Basic. [13] Notable features include: A "procedure" is the main construct in VBScript for separating code into smaller modules. VBScript distinguishes between a function, which can return a result in an assignment statement, and a subroutine, which cannot.
Basically, object code for the language's interpreter needs to be linked into the executable. Source code fragments for the embedded language can then be passed to an evaluation function as strings. Application control languages can be implemented this way, if the source code is input by the user. Languages with small interpreters are preferred.
The intermediate code is then executed [6] by a virtual machine (hosted by the host application). Compatibility ends with Visual Basic version 6; VBA is incompatible with Visual Basic .NET (VB.NET). VBA is proprietary to Microsoft and, apart from the COM interface, is not an open standard.
Typically, a script starts executing at the first line of code whereas an application typically starts at a special point in the code called the entry point. For example, Java is not script-like since an application starts at the function named main which need not be at the top of the code.
For example, a drop-down control displays a list of items. When the user selects an item, an event handler is automatically called that executes the code that the programmer attached to the handler. For a DLL, the VB code generally provides no user interface, and instead provides COM objects to other programs.
Visual Basic is a name for a family of programming languages from Microsoft. It may refer to: Visual Basic (.NET), the current version of Visual Basic launched in 2002 which runs on .NET
A Windows Script File (WSF) is a file type used by the Microsoft Windows Script Host.It allows mixing the scripting languages JScript and VBScript within a single file, or other scripting languages such as Perl, Object REXX, Python, or Kixtart if installed by the user.
Microsoft Script Debugger is relatively minimal debugger for Windows Script Host-supported scripting languages, such as VBScript and JScript. Its user interface allows the user to set breakpoints and/or step through execution of script code line by line, and examine values of variables and properties after any step.