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Getting and Setting Properties (Windows Installer)

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To use properties in your installation, you can get and set property values from programs using MsiGetProperty and MsiSetProperty and include as part of conditional statements in the installation database.

  • To obtain a current property, call the MsiGetProperty function.
  • To obtain the current installation state, call the MsiGetMode function.
  • To obtain the language for the current installation, call the MsiGetLanguage function.
  • To set a property, call the MsiSetProperty function.
  • To set the installation state, call the MsiSetMode function.
  • To clear a property (setting it to Null), set the property's value to an empty string: "".

Using Properties

Setting Public Property Values on the Command Line

Clearing an Installer Property