Understanding IEnvironmentVariable: A Guide to Effective Usage and Best Practices

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• Introduction
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    * IAdvancedInstaller
    * IAdvinstProject
    * IProductDetails
    * IFolder
    * ILaunchConditionsComponent
    * IFilesComponent
    * IIniFilesComponent
    * IShortcut
    * ITempFile
    * IXmlFile
    * IDirectoryMember
    * IRegistryComponent
    * IInstallParameters
    * IBuildComponent
    * ITextFileUpdatesComponent
    * ITextUpdateFile
    * ITextUpdateAppendOrCreate
    * ITextUpdateReplace
    * IFileAssociations
    * IDefaultProgramFA
    * IExtensionFA
    * IProgIdFA
    * IVerbFA
    * IEnvironment
    * IEnvironmentVariable
    * IProductCode
    * IUpgradeCode
    * IMergeModulesComponent
    * IMergeModule
    * IDigitalSignature
    * ICustomActionsComponent
    * ITranslationsComponent
    * IDriversComponent
    * ISearch
    * IServices
    * IOrganizationComponent
    * IComComponent
    * IRemoveFilesComponent
    * IRemoveFile
    * IUpdatesProject
    * IUpdaterComponent
    * IPatchProject
    * IPropertyComponent
    * IProperty
    * IPathVariable
    * IMsixComponent
    * IMsixDependencies
    * IMsixDriverDependency
    * IMsixDriverConstraint
    * IMsixExternalDependency
    * IMsixPackageDependency
• Features and Functionality
• Tutorials
• Samples
• How-tos
• FAQs
• Windows Installer
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• IT Pro
• MSIX
• Video Tutorials
• Advanced Installer Blog
• Table of Contents

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IEnvironmentVariable

Declaration

IEnvironmentVariable : IDispatch

Overview

This interface is meant to edit environment variable operation

Properties

String Name - Gets or sets the environment variable’s name

String Value - Gets or sets the environment variable’s content

String InstallOperationType - Gets or sets the behavior of the operation at install time.
Supported values:“CreateOrUpdate”, “CreateOnlyIfNotExists”, “Remove”

Bool RemoveOnUninstall - Gets or sets the option that will make the Windows Installer remove the environment variable when the package is uninstalled

Bool IsSystemVariable - Gets or sets the option that will set the environment variable as a system variable

String UpdateOperationType - Gets or sets the update behavior when the environment variable already exists on the target machine. Supported values: “Replace”, “Append”, “Prepend”

String Separator - Gets or sets the character that will be used as separator for the rest of the value if the environment already exists and UpdateOperationType has value “Append” or“Prepend”

ICompoent Component - Gets or sets the component which will contain the environment variable.

See also

IAdvinstProject

IProductDetails

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