Element: AppSearch

Description

Uses file signatures to search for existing versions of products.

Derived By

Type ActionModuleSequenceType

Attributes

Name	Type	Required?	Default	Description
After	string	No		The name of an action that this action should come after.
Before	string	No		The name of an action that this action should come before.
Overridable	YesNoType	No		If "yes", the sequencing of this action may be overridden by sequencing elsewhere.
Sequence	integer	No		A value used to indicate the position of this action in a sequence.
Suppress	YesNoType	No		If yes, this action will not occur.

Content Model

Contains text only.

Referenced By

• Element InstallExecuteSequence
• Element InstallUISequence

Remarks

The AppSearch action may use this information to determine where upgrades are to be installed. The AppSearch action can also be used to set a property to the existing value of an registry or .ini file entry. AppSearch should be authored into the InstallUISequence table and InstallExecuteSequence table. The installer prevents The AppSearch action from running in the InstallExecuteSequence sequence if the action has already run in InstallUISequence sequence. The AppSearch action searches for file signatures using the CompLocator table first, the RegLocator table next, then the IniLocator table, and finally the DrLocator table. The condition for this action may be specified in the element's inner text.

Definition

<xs:element name="AppSearch" type="ActionModuleSequenceType">
  <xs:annotation>
    <xs:appinfo>
      <xse:seeAlso ref="ComponentSearch" xmlns:xse="http://schemas.microsoft.com/wix/2005/XmlSchemaExtension" />
      <xse:seeAlso ref="FileSearch" xmlns:xse="http://schemas.microsoft.com/wix/2005/XmlSchemaExtension" />
      <xse:seeAlso ref="IniFileSearch" xmlns:xse="http://schemas.microsoft.com/wix/2005/XmlSchemaExtension" />
      <xse:seeAlso ref="RegistrySearch" xmlns:xse="http://schemas.microsoft.com/wix/2005/XmlSchemaExtension" />
      <xse:msiRef table="AppSearch" href="http://msdn.microsoft.com/library/aa367579.aspx" xmlns:xse="http://schemas.microsoft.com/wix/2005/XmlSchemaExtension" />
      <xse:msiRef action="AppSearch" href="http://msdn.microsoft.com/library/aa367578.aspx" xmlns:xse="http://schemas.microsoft.com/wix/2005/XmlSchemaExtension" />
    </xs:appinfo>
    <xs:documentation>Uses file signatures to search for existing versions of products.  The AppSearch action may use this information to determine where upgrades are to be installed.  The AppSearch action can also be used to set a property to the existing value of an registry or .ini file entry.  AppSearch should be authored into the InstallUISequence table and InstallExecuteSequence table.  The installer prevents The AppSearch action from running in the InstallExecuteSequence sequence if the action has already run in InstallUISequence sequence.  The AppSearch action searches for file signatures using the CompLocator table first, the RegLocator table next, then the IniLocator table, and finally the DrLocator table.  The condition for this action may be specified in the element's inner text.</xs:documentation>
  </xs:annotation>
</xs:element>

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