The method denotes the outcome of the operation by returning a boolean value that equals False if the script cannot be trusted, and True otherwise. If the method can successfully read the private key information and the certificate authority that issued the certificate, it first verifies that the code has not been tampered with and then returns True.
It does this by instantiating script programs directly on remote computers. As mentioned earlier, Remote WSH has nothing to do with remote scripting. You instantiate the WshController object as follows:. The WshController object has no properties and exposes just one method, CreateScript. By invoking CreateScript, you obtain a reference to a WshRemote object:. The scriptName argument indicates the script's path and switches as they would be typed at the command prompt.
The path to the script must be relative to the caller machine. The serverName parameter is optional and indicates the UNC name of the remote machine where you want the script to run. If omitted, the script runs locally. The WshRemote object represents an instance of a local WSH script which is ready to run across process, computer, and network boundaries, as defined by the serverName argument. You can execute, control, and terminate the script remotely by setting the properties of the WshRemote object.
When you generate a remote WSH script instance, the controller loads the local script file from the directory path you have specified and sends its text to the server process over the network. The DCOM marshaler takes care of all this. The script file and all of its embedded resources such as included files are never persisted to a server destination path, not even temporarily.
Instead, they are copied directly into the server process's memory. To enable Remote WSH functionality, you must first set up the remote machine with the proper security settings. For one thing, both the remote and local machines must be running Windows NT 4. The user who will run scripts remotely must be a member of the Local Administrators group on the target machine.
Finally, Remote WSH must be enabled on the remote server machine. Remote WSH is not an interactive process like login, so remotely instantiated scripts cannot display any kind of user interface on the remote computer, including pop-up messages.
If you try to instantiate a process that displays a user interface, the script may fail or have unreliable results. Once the WSH automation server is successfully started, it returns an instance of the WshRemote object, which allows the caller to execute the script remotely and access information about the remote script instance. When you create a WshRemote object, execution of the WSH script does not occur immediately because the method only creates the script instance.
The server-side script begins execution only when you call the Execute method. This is useful if you want to coordinate a specific time when scripts run on multiple computers, triggered by some condition. When launched, remote scripts always run through wscript. This is because an error notification that pops up on the remote machine might not be seen in a timely manner.
Worse yet, a WScript. Echo command that was accidentally left in could prompt a message box on a thousand machines. By default, WScript. Echo and user interface commands are disabled.
Figure 10 shows the programming interface methods, properties, and events of the WshRemote object. The remote script can be any valid WSH command line, not including the executable name—wscript. The WshController object does not permit the direct instantiation of executable files. You can do this indirectly by placing the executables in a script file that spawns them with the WshShell's Exec method.
For this method to work properly, the executables that run remotely must reside on the target remote computer in the directory path specified by the Exec command line. Also, keep in mind that if you use this method, you cannot expect to return data from these executables since the WshRemote object only returns status and error information. WSH does not recognize whether one of the command-line parameters used in a remote WSH invocation is itself a local file, since arguments are treated like strings.
Running a script via Remote WSH is like running that script on the remote machine. If you need files copied over to a remote machine for further use, then you'll have to write code to copy them yourself. The status of a WSH remote script can be represented by any of the values listed in Figure Compared to connecting to the events of the WshRemote object, the Status property gives you an inexpensive way to get status information.
Connecting to events uses more computer resources and can sometimes be tricky. This code shows how to run a remote script and monitor its progress:.
Notice that the Status property of the WshRemote object is only updated when it is effectively queried, minimizing the traffic between calling and called scripts. An alternative that uses events is shown in Figure If a remotely instantiated script terminates because of an error, the WshRemoteError object is filled with error properties such as Number, Description, Character, SourceText, and Source.
You access this object through the WshRemote Error property, typically from within an event handler that catches the Error event. It runs an application in a child command shell and provides access to streams of the spawned process like StdIn, StdOut, and StdErr. The Exec method takes a string value indicating the command line used to run the script. The command line should appear exactly as you would have typed it at the command prompt.
The Exec method returns a WshScriptExec object, which is the object that actually provides status and error information about the script being run. You cannot use the Exec method to execute anything other than command-line console applications. Likewise, the Exec method cannot be used to run remote scripts and should not be confused with the Execute method of the WshRemote object.
The WshScriptExec object solved an issue for script developers who needed to spawn console or command prompt applications. A simple, yet effective approach is the following:. There is nothing wrong with this approach as long as it really provides what you need. The Run method ceases to be the ideal approach if you need to access the input, output, and error streams of the spawned application.
In this case, you are better off using the Exec method. The WshArguments object provides access to the entire collection of command-line parameters in the order they have been specified. WshArgument is a collection that can be accessed according to the typical programming interface of COM collections. Named arguments are command-line arguments that have been associated with a name.
All arguments not associated with a name fall in the category of unnamed arguments. The contents of the Arguments collection are always the sum of the contents of Named and Unnamed arguments. In general, a command-line argument includes two distinct types of information: the role and the value. For most applications, the role of each parameter is implied by the position it occupies on the command line.
The program assumes that the first parameter means one thing, the second another, and the third something else. The role of a named argument is not implied by position but comes as a part of the argument itself. Consider this command:. Scripts that define their command-line arguments according to this schema have a way to identify their input values by name. Named arguments are far easier to manipulate because they can be placed anywhere on the command line and are self-explanatory.
Any other combination of characters simply won't work. The value of the parameter is what comes after the colon until a blank character is found. If you want to assign it a string that may contain blanks, you must wrap it in quotes, like this:.
When a named argument is stored in the Named collection, the wrapping quotes, if any, are removed. All the named arguments are extracted from the command line, parsed, and made accessible through the Named collection. The following code returns the number of named arguments for the current script:. The Named collection provides the typical programming interface for collections. This includes properties like Item, Count, and Length. In addition, Named has an extra method, Exists.
The Exists method checks whether the collection contains an item whose name matches the specified text:. All the arguments on the command line that don't have a name are considered unnamed and grouped in the Unnamed collection. You retrieve any unnamed argument as you would retrieve a generic item from Arguments.
Script applications implemented through the WSH schema can include metadata, which is information used to request special services from the WSH runtime. In particular, all the information defined within the runtime element serves as self-documentation. It lets you specify the expected arguments, a description of the script's behavior, and usage information. The runtime element is the parent element within which you define all run-time arguments and usage information.
The runtime element is normally placed immediately following the job element. It is a child of a given job, and all of its settings apply only to that particular job:. The named element indicates one of the named arguments that a job supports. It recognizes four attributes: Name, Helpstring, Required, and Type. The Name attribute, as you might guess, allows you to define an argument name.
The Helpstring attribute specifies the description of the argument. The Required attribute is used to set an argument as required or optional.
Type is an optional attribute that describes the type of the argument. It determines how the argument will be parsed from the command line. Allowed values are "simple," "string," and "boolean," with "simple" being the default value. Figure 13 shows the elements you can use under the runtime element that influence the output of ShowUsage. The code in Figure 14 generates the message box shown in Figure Figure 15 WSH Options The run-time information for each parameter is used only for self-documentation and to format the data displayed by the ShowUsage method of the WshArguments collection.
The runtime elements do not enforce the values set for the arguments it contains. For example, if an argument is marked as required but is actually missing from the command line, no error will be raised. The list of enhancements in WSH 5. But before closing, let me mention a couple of tips that will help you when scripting for Windows XP. First is a visual issue. Windows XP has Visual Styles that can be turned on programmatically. All that's needed is an XML manifest file with the same name as the executable, with a.
Amazingly, the same XML manifest file can work unchanged with any executable on that machine, but you might want to customize the product and copyright information.
However, turning themes on for all WSH applications is easy. In doing so, you'll notice that the System32 folder already contains a few other manifest files. The effect, with and without the manifest, is shown in Figure Password, implemented in the scriptpw. Although this is not officially part of the WSH 5. The ScriptPW object works as a password reader and allows you to type in sensitive data without displaying it. The GetPassword method collects and returns the typed text. You use the component as follows:.
Password is certainly useful because it addresses functionality that was previously missing. Unfortunately, though, it is not perfect. For one thing, it doesn't work in a GUI environment and is only available to console scripts running under the control of cscript. Second, it captures any text you type but it never provides any feedback to the user. In particular, it displays only a blinking cursor as you enter text; no special character replaces the individual characters.
The WSH core wscript. In the past, a lot of people applied the same model to their applications making them customizable and extensible. The question you may be asking now is what's going to change in this area with the advent of. Scripting has very little to do with.
NET for two good reasons. Second, the advantages you get from. NET languages over scripting languages are substantial in terms of performance and programming ease.
Whenever you can use a. NET language instead, there's no question about what's better. These new engines are freely redistributable along with the rest of the framework. At this time, the two script engines that the. NET and JScript. In addition, a third engine is in the works for the.
NET intermediate language IL. This engine would be able to load precompiled IL code but not compile from sources. This new Script for the. First, you have full access to the entire. NET platform. In other words, you are no longer forced to build a tailor-made object model in your applications just to allow for scripting. NET, the application is inherently programmable in the sense that any constituent public class is accessible without intermediate proxies.
However, you can control what objects are effectively reachable via script and you can make the scripts run in a kind of secured sandbox. The languages you use to script. NET applications are the same first-class languages you use for writing them.
They provide advanced features such as strong typing, early binding, and, of course, compiled code. In addition, Script for the. To start using a language engine, you first create an instance of it, add some code, and then add the object model that the script is based upon.
Objects are not attached to the engine through living instances as they were with the Windows Script engine. Instead, you need to specify the type and name in order to script the object. Only when the script executes and an instance of that object is needed will the engine call you back to obtain a usable instance for that kind of object.
The interface involved with the setup of the engine is IVsaEngine. The interface for callbacks is IVsaSite. The language engines also support the ability to add references to. NET classes by creating an item in the engine with the full name of the involved assembly. In this way, all the types in the assembly are available to the script. When WSH is updated for. NET it is expected to be an application based on the Script for the.
What you can expect in the future of WSH, far beyond today's upgrade, is a shell-level environment that knows how to work with any. NET language from JScript. NET to Visual Basic. NET, and from J to C. Any of these languages will become just another "script" language supported by WSH. Windows Forms are, and will be, full-fledged applications distributed through compiled code.
It is expected that WSH applications for. Microsoft typically does not release Microsoft Office Access EXE files for download because they are bundled together inside of a software installer. The installer's task is to ensure that all correct verifications have been made before installing and placing wscript.
An incorrectly installed EXE file may create system instability and could cause your program or operating system to stop functioning altogether. Proceed with caution. You are downloading trial software. Subscription auto-renews at the end of the term Learn more.
How to Download Wscript. Average User Rating. All rights reserved. View Other wscript. What are wscript. Some of the most common wscript.
Class not registered. We are sorry for the inconvenience. Cannot find wscript. Error starting program: wscript. Faulting Application Path: wscript.
The file wscript. Windows failed to start - wscript. How to Fix wscript. Step 1: Restore your PC back to the latest restore point, "snapshot", or backup image before error occurred. In the search results, find and click System Restore.
Follow the steps in the System Restore Wizard to choose a relevant restore point. Restore your computer to that backup image. If the Step 1 fails to resolve the wscript. Step 2: If recently installed Microsoft Office Access or related software , uninstall then try reinstalling Microsoft Office Access software. In the search results, find and click " Add or Remove Programs " Find the entry for Microsoft Office Access 14 and click " Uninstall " Follow the prompts for uninstallation. If this Step 2 fails as well, please proceed to the Step 3 below.
In the Windows Update dialog box, click " Check for Updates " or similar button depending on your Windows version If updates are available for download, click " Install Updates ".
After the update is completed, restart your PC. Please follow the steps below to download and properly replace you file: Locate your Windows operating system version in the list of below "Download wscript.
Click the appropriate "Download Now" button and download your Windows file version. Download wscript. OS Version: Windows 8.
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