I can write a registry key and value in setup project of wix,the code like this:
<RegistryKey Id="WinApp" Root="HKLM" Key="Software\App\[ProductName]" Action="createAndRemoveOnUninstall" >
<RegistryValue Type="string" Name="InstallName" Value="[ProductName]" Action="write" KeyPath="yes"></RegistryValue>
</RegistryKey>
How can i do in bootstrapper project?