Use VBScript to implement changes to the Windows Registry _ Information Center

Have you heard of the famous WSH? It is the abbreviated form of Windows Script Host, a scripting instruction for Windows platform that is powerful enough to achieve its superior functionality with a simple, easy-to-use and powerful JScript and VBScript scripting language, WSH. In addition to the modified registry described in this article, it can also access the Excel file, but also with the network, of course, its biggest advantage is that it can communicate with the operating system, and modify the registry is its interface with the operating system is the tip of the iceberg. It is it has so many advantages and practicality, is much favored by many Windows users, this article for you to introduce one or two, so that you enjoy the style of WSH.
The WSH program file, written in VBScript, has a. vbs extension, which is executed by the Wscript.exe file in the window interface, which is executed by the Cscript.exe file, and the command format is: cscript Filename.vbs

Creating objects
To modify the registry in VBScript, you must first create an object that communicates with the operating system, and then manipulate the registry using various methods of the object, creating the method and format of the object as follows:
Dim Operationregistry
Set operationregistry=wscript.createobject ("Wscript.Shell")
The above code creates an object that communicates with the operating system Operationregistry

Method of the object

With this object, it does not mean that the registry can be manipulated immediately, and we must also find out how the object operates on the registry in several important ways.
1. Read operations on the registry RegRead
2. Write operations on the registry RegWrite
3. The deletion of the registry operation RegDelete
To add, WSH also has two common methods:
WScript.Echo () is used to display a string of textual information, equivalent to the MsgBox () in VB.
Wscript.Quit () is used to exit the VBScript program.

Parameter of the method

For all of the above three operations regread,regwrite,regdelete need to carry parameters, and the number and form of these operations are not the same, I will take a common and essential parameters of them:
This parameter can be called a path parameter, which includes the root key, the primary key path, and the key value, and the sections represent the following methods:
Root key:
There are two ways to represent a root key.
Method One: It is represented directly by a string in the registry, such as:
Hkey_classes_root,hkey_current_user, etc.
Method Two: With the abbreviation of four letters, the first two is HK, the last two is the first letter of the root key word. Such as:
The root key HKEY_CLASSES_ROOT is expressed as: HKCR, the root key HKEY_CURRENT_USER can be expressed as: HKCU, etc.
Primary Key Path:
The primary key path is the primary key location in the registry for the target key, separated by a "/" character between the primary keys. such as: "Software/microsoft/windows/currentversion/policies/"
Key value:
The key value parameter is directly connected to the primary key path. For example, a complete path is shown below:
"Hkcr/software/microsoft/windows/currentversion/policies/norun"

Method detailed

1, RegRead Operation detailed

Read operation RegRead is mainly used to read the default value or key value data of the primary key in the registry. We can send the read data to the corresponding variable, and then use the MsgBox () function in VB to display the data, which achieves the purpose of reading the data in the registry ( You can also use the object Operationregistry method popup () to send the read data to the screen, for example:
' Read.vbs (Save the following code as a read.vbs file)
Dim Operationregistry
Set operationregistry=wscript.createobject ("Wscript.Shell")
Dim Read_data1,read_data2
Read_data1=operationregistry.regread ("hkcr/.xxf/")
' reads the default value of the. XXF primary key under the root key HKEY_CLASSES_ROOT and sends the data to the variable read_data1
Read_data2=operationregistry.regread ("Hkcr/.xxf/value")
' Reads the data for the value key below the. XXF primary key and sends the data to the variable Read_data2
MsgBox ("default=" &Read_Data1& "value=" &read_data2)
' To display the read data

2, RegWrite Operation detailed

Write operation RegWrite is used primarily to create a new primary key or key value in the registry. And to give them an initial value, the operation can also modify data in the registry with the existing primary key or key value, so the parameter structure of the write operation is more complicated than the read operation, it needs not only the path parameter, An initial value and a type parameter are also needed.
Take a look at the initial value parameter, which is essential for write operations, it can be empty (null) but cannot be omitted. When a new primary key is created, the initial value parameter is assigned to the default value of the primary key, and when the new key value is created, the initial value is the initial data for the new key value. The type of the initial value is determined by the type parameter. There are mainly three kinds of types:

(1) REG_SZ: Character type. The type is the default type
(2) REG_DWORD: Double byte type.
(3) REG_BINARY: Binary type.

The above three types of 1th and 2nd are used most, and the 3rd type can be substituted with 2nd in some cases, these three types of assignment methods are as follows:
For REG_SZ type: directly with strings, such as "text", "string", etc.
There are two ways to assign a REG_DWORD type and a REG_BINARY type

i) directly in decimal notation, such as: 0,1 and so on.
ii) expressed in hexadecimal numbers, such as: 0X12,0XFF, etc. See Example:


' Write.vbs
Dim Operationregistry
Set operationregistry=wscript.createobject ("Wscript.Shell")
Default=operationregistry.regread ("hkcr/")
' Get a null value (NULL)

Operationregistry.regwrite "hkcr/.xxf/", Default
' Create a new primary key under the root key HKEY_CLASSES_ROOT. XXF, and set its default value to NULL

Operationregistry.regwrite "hkcr/.xxf/", "Xxffile"
' Create a new primary key under the root key HKEY_CLASSES_ROOT. XXF, and set its default value? quot;xxffile '

Operationregistry.regwrite "Hkcr/.xxf/value1", "string"
' Under primary key. XXF creates a new string-type key-value value1, with its initial value of "string"

Operationregistry.regwrite "Hkcr/.xxf/value2", 1, "REG_DWORD"
' Create a new REG_DWORD key value value2 under primary key. XXF, and place its initial value at 1

Operationregistry.regwrite "Hkcr/.xxf/value3", 0Xff, "REG_Binary"
' Under primary key. XXF Create a new binary key value Value3 and place FF with its initial value of 16


3, RegDelete Operation detailed

Delete operation RegDelete is primarily used to delete a primary key or key value that already exists in the registry. This operation is an extremely dangerous operation, it can mercilessly in the registry "cut off", regardless of the key value of how important data, it can be unimpeded, so use this operation must be careful.
The Parameter form of the delete operation is almost exactly the same as the parameter form of the read operation, except that the deletion does not require the return value of the operation to be given to a variable, for example:


' Delete.vbs
Dim Operationregistry
Set operationregistry=wscript.createobject ("Wscript.Shell")
Operationregistry.regread ("Hkcr/.xxf/value")
' Delete the value key below the. XXF PRIMARY Key
Operationregistry.regread ("hkcr/.xxf/")
' Delete the. XXF primary key under the root key HKEY_CLASSES_ROOT

To emphasize, do not change the existing primary key or key values in the registry, let alone delete them, because the registry has been improperly written or deleted operation, the situation will cause the system crashes! If you really want to do this, please make a backup copy of the registry.

Application examples

1, reading machine "Computer name"


' Readcomputername.vbs
Dim Readcomputername
Set readcomputername=wscript.createobject ("Wscript.Shell")
Dim Computername,regpath
Regpath= "Hklm/system/currentcontrolset/control/computername/computername/computername"
Computername=readcomputername.regread (Regpath)
MsgBox ("Computer name" &computername)

2, hide the shortcut icon on the small arrow


' Hidden.vbs
Dim Hiddenarrowicon
Set hiddenarrowicon=wscript.createobject ("Wscript.Shell")
Dim Regpath1,regpath2
regpath1= "Hkcr/lnkfile/isshortcut"
Regpath2= "Hkcr/piffile/isshortcut"
Hiddenarrowicon.regdelete (REGPATH1)
Hiddenarrowicon.regdelete (REGPATH2)

3, the transformation of the "Start" menu


' Changestartmenu.vbs
Dim Changestartmenu
Set changestartmenu=wscript.createobject ("Wscript.Shell")
Regpath= "Hkcr/software/microsoft/windows/currentversion/policies/"
Type_name= "REG_DWORD"
Key_data=1

Startmenu_run= "NoRun"
Startmenu_find= "Nofind"
Startmenu_close= "Noclose"

Sub Change (Argument)
Changestartmenu.regwrite Regpath&argument,key_data,type_name
MsgBox ("success!")
End Sub

Call Change (Startmenu_run) ' Disables the ' run ' feature in the Start menu
Call Change (Startmenu_find) ' Disables the ' Find ' feature in the Start menu
' Turn off system ' feature in the Start menu is disabled by call Change (Startmenu_close)

4. Add a self-starter program to Windows


The program can be run automatically when it is powered on.
' Addautorunprogram.vbs
' Suppose the program is in the C:/myfile folder, the file name is Autorun.exe
Dim Autorunprogram
Set autorunprogram=wscript.createobject ("Wscript.Shell")
Regpath= "hklm/software/microsoft/windows/currentversion/run/"
Type_name= "REG_SZ"
Key_name= "AutoRun"
Key_data= "C:/myfile/autorun.exe"
' Full path filename for the self-starter program
Autorunprogram.write Regpath&key_name,key_data,type_name
' Add the Self-starter program to the Startup group Autorun.exe
MsgBox ("success!")