My.Computer.Registry.DynData Property 

Returns a RegistryKey type, which provides access to HKEY_DYNDATA.

' Usage
Dim value As Microsoft.Win32.RegistryKey = My.Computer.Registry.DynData
' Declaration
Public ReadOnly Property DynData As Microsoft.Win32.RegistryKey

Return Value

RegistryKey

Remarks

The My.Computer.Registry object offers methods and properties for working with registry keys. See My.Computer.Registry Object for more information.

HKEY_DYNDATA is used to store dynamic registry data, such as that used by Virtual Device Drivers and is supported only on Windows 95/98 systems. On non-Windows 95/98 systems, calling any methods of the key returned by Registry.DynData, such as CreateSubKey, DeleteSubKey, GetSubKeyCount, GetValueCount, etc., will throw a IOException.

The RegistryPermission class, which is in the System.Security.Permissions namespace, controls access to registry variables. Registry variables should not be stored in memory locations where code without RegistryPermission can access them. Similarly, when granting permissions, grant the fewest privileges necessary to get the job done.

Registry permission access values are defined by the RegistryPermissionAccess enumeration. The following table details its members.

Value	Description
AllAccess	Create, read, and write access to registry variables.
Create	Create access to registry variables.
NoAccess	No access to registry variables.
Read	Read access to registry variables.
Write	Write access to registry variables.

Tasks

The following table lists examples of tasks involving the My.Computer.Registry object.

To	See
Create a registry key	How to: Create a Registry Key and Set Its Values in Visual Basic
Delete a registry key	How to: Delete a Registry Key in Visual Basic
Determine whether a value exists in a registry key	How to: Determine if a Value Exists in a Registry Key in Visual Basic
Read a value from a registry key	How to: Read a Value from a Registry Key in Visual Basic
Set a value in a registry key	How to: Set Values in Registry Keys in Visual Basic

Example

This example deletes the subkey tree Software\MyCompany\Preferences.

My.Computer.Registry.DynData.DeleteSubKeyTree("Software\MyCompany\Preferences")

Requirements

Namespace: Microsoft.VisualBasic.MyServices

Class: RegistryProxy (provides access to Registry)

Assembly: Visual Basic Runtime Library (in Microsoft.VisualBasic.dll)

Availability by Project Type

Project type	Available
Windows Application	Yes
Class Library	Yes
Console Application	Yes
Windows Control Library	Yes
Web Control Library	Yes
Windows Service	Yes
Web Site	Yes

Permissions

No permissions are required.

See Also

Tasks

Troubleshooting: Manipulating the Registry

Reference

My.Computer.Registry Object
Microsoft.Win32.RegistryKey
Microsoft.Win32.Registry.DynData

Concepts

Common Registry Tasks
Security and the Registry
Reading from and Writing to the Registry Using My