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Editorial Team
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Asked: 2026-06-14T07:29:01+00:00

I am trying to split out my wix file into two separate files. With

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I am trying to split out my wix file into two separate files. With everything that exists under my <UI> </UI> tag living in this secondary file.

I have googled this quite a bit but I don’t seem to be getting any conclusive results.

Has anyone done this successfully?

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1 Answer

  1. Editorial Team

    In your Wix project add the reference to the WixUIExtension

    In your Product.wxs (Main Install file) add a line like this

    <UIRef Id="UserInterface"/>

    Add the UserInterface.wxs to your project solution and customize the UI of your MSI:

      <TextStyle Id="WixUI_Font_Normal" FaceName="Tahoma" Size="8" />
  <TextStyle Id="WixUI_Font_Bigger" FaceName="Tahoma" Size="9" Bold="yes" />
  <TextStyle Id="WixUI_Font_Title"  FaceName="Tahoma" Size="9" Bold="yes" />

  <Property Id="DefaultUIFont" Value="WixUI_Font_Normal" />

  <DialogRef Id="ProgressDlg" />
  <DialogRef Id="ErrorDlg" />
  <DialogRef Id="FilesInUse" />
  <DialogRef Id="FatalError" />
  <DialogRef Id="UserExit" />
  <DialogRef Id="InstallDirDlg"/>
  <DialogRef Id="FeaturesDlg" />




  <Publish Dialog="WelcomeDlg" Control="Next" Event="NewDialog" Value="FeaturesDlg" Order="2"></Publish>

  <Publish Dialog="FeaturesDlg" Control="Back" Event="NewDialog" Value="WelcomeDlg">1</Publish>

  <Publish Dialog="InstallDirDlg" Control="Back" Event="NewDialog" Value="FeaturesDlg">1</Publish>
  <Publish Dialog="InstallDirDlg" Control="ChangeFolder" Property="_BrowseProperty" Value="[WIXUI_INSTALLDIR]" Order="1">1</Publish>
  <Publish Dialog="InstallDirDlg" Control="ChangeFolder" Event="SpawnDialog" Value="BrowseDlg" Order="2">1</Publish>
  <Publish Dialog="InstallDirDlg" Control="Next" Event="SetTargetPath" Value="[WIXUI_INSTALLDIR]" Order="1">1</Publish>
  <Publish Dialog="InstallDirDlg" Control="Next" Event="NewDialog" Value="ExitDialog" Order="2">1</Publish>



  <Publish Dialog="ExitDialog" Control="Finish" Event="EndDialog" Value="Return" Order="999">1</Publish>

</UI>
<UIRef Id="WixUI_Common" />

    The complete sample of this code can be found at this answer

    Look at this link, explains how to create Custom Dialogs

    Good luck!

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