static extern IntPtr MsiCreateRecord(uint cParams);

Declare Function MsiCreateRecord Lib "msi.dll" (cParams As Integer) As IntPtr

The sample application below demonstrates how to use MsiRecordSetString, MsiOpenDatabase, MsiCreateRecord, MsiCloseHandle, MsiDatabaseOpenView, MsiViewExecute, MsiDatabaseCommit, and MsiViewClose in C# to modify a property value in an MSI database. To run it, simply create a new Windows Console application and replace the code that Visual Studio gives you with the code below. You may have to modify the namespace name. The sample as-is requires a valid MSI database named SETUP.msi, with a property named PROPERTY1 in the Property table, to be located in C:\. You can of course change the path to your MSI database in the calls to ChangeMSIProperty() in Main() and use any existing property you wish.

    static extern IntPtr MsiCreateRecord(uint cParams);

        msiRecord = MsiCreateRecord(1);

            throw new MsiInstallationSupportException(string.Format(CultureInfo.InvariantCulture, "MsiCreateRecord failed to return a valid record handle."));