yachtpit/build/windows/installer/InstallDirUi.wxs

<?xml version="1.0" encoding="UTF-8"?>
<Wix xmlns="http://wixtoolset.org/schemas/v4/wxs"
    xmlns:ui="http://wixtoolset.org/schemas/v4/wxs/ui">
    <!-- Copied from https://github.com/wixtoolset/wix4/blob/6f2511f58f60e63a15357a2fe37f83343dea3090/src/ext/UI/wixlib/WixUI_InstallDir.wxs#L9
         but with the license dialog disabled.
         See: https://wixtoolset.org/docs/v3/wixui/wixui_customizations/#changing-the-ui-sequence-of-a-built-in-dialog-set. -->
    <Fragment>
        <UI Id="WixUI_CustomInstallDir">
            <TextStyle Id="WixUI_Font_Normal" FaceName="Tahoma" Size="8" />
            <TextStyle Id="WixUI_Font_Bigger" FaceName="Tahoma" Size="12" />
            <TextStyle Id="WixUI_Font_Title" FaceName="Tahoma" Size="9" Bold="yes" />

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

            <DialogRef Id="BrowseDlg" />
            <DialogRef Id="DiskCostDlg" />
            <DialogRef Id="ErrorDlg" />
            <DialogRef Id="FatalError" />
            <DialogRef Id="FilesInUse" />
            <DialogRef Id="MsiRMFilesInUse" />
            <DialogRef Id="PrepareDlg" />
            <DialogRef Id="ProgressDlg" />
            <DialogRef Id="ResumeDlg" />
            <DialogRef Id="UserExit" />
            <Publish Dialog="BrowseDlg" Control="OK" Event="SpawnDialog" Value="InvalidDirDlg" Order="4" Condition="NOT WIXUI_DONTVALIDATEPATH AND WIXUI_INSTALLDIR_VALID&lt;&gt;&quot;1&quot;" />

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

            <Publish Dialog="WelcomeDlg" Control="Next" Event="NewDialog" Value="InstallDirDlg" Condition="NOT Installed" />
            <Publish Dialog="WelcomeDlg" Control="Next" Event="NewDialog" Value="VerifyReadyDlg" Condition="Installed AND PATCH" />

            <Publish Dialog="InstallDirDlg" Control="Back" Event="NewDialog" Value="WelcomeDlg" />
            <Publish Dialog="InstallDirDlg" Control="Next" Event="SetTargetPath" Value="[WIXUI_INSTALLDIR]" Order="1" />
            <Publish Dialog="InstallDirDlg" Control="Next" Event="SpawnDialog" Value="InvalidDirDlg" Order="3" Condition="NOT WIXUI_DONTVALIDATEPATH AND WIXUI_INSTALLDIR_VALID&lt;&gt;&quot;1&quot;" />
            <Publish Dialog="InstallDirDlg" Control="Next" Event="NewDialog" Value="VerifyReadyDlg" Order="4" Condition="WIXUI_DONTVALIDATEPATH OR WIXUI_INSTALLDIR_VALID=&quot;1&quot;" />
            <Publish Dialog="InstallDirDlg" Control="ChangeFolder" Property="_BrowseProperty" Value="[WIXUI_INSTALLDIR]" Order="1" />
            <Publish Dialog="InstallDirDlg" Control="ChangeFolder" Event="SpawnDialog" Value="BrowseDlg" Order="2" />
            <Publish Dialog="VerifyReadyDlg" Control="Back" Event="NewDialog" Value="InstallDirDlg" Order="1" Condition="NOT Installed" />
            <Publish Dialog="VerifyReadyDlg" Control="Back" Event="NewDialog" Value="MaintenanceTypeDlg" Order="2" Condition="Installed AND NOT PATCH" />
            <Publish Dialog="VerifyReadyDlg" Control="Back" Event="NewDialog" Value="WelcomeDlg" Order="2" Condition="Installed AND PATCH" />

            <Publish Dialog="MaintenanceWelcomeDlg" Control="Next" Event="NewDialog" Value="MaintenanceTypeDlg" />

            <Publish Dialog="MaintenanceTypeDlg" Control="RepairButton" Event="NewDialog" Value="VerifyReadyDlg" />
            <Publish Dialog="MaintenanceTypeDlg" Control="RemoveButton" Event="NewDialog" Value="VerifyReadyDlg" />
            <Publish Dialog="MaintenanceTypeDlg" Control="Back" Event="NewDialog" Value="MaintenanceWelcomeDlg" />

            <Property Id="ARPNOMODIFY" Value="1" />

            <InstallUISequence>
                <Show Dialog="FatalError" OnExit="error" />
                <Show Dialog="UserExit" OnExit="cancel" />
                <Show Dialog="ExitDialog" OnExit="success" />
            </InstallUISequence>

            <AdminUISequence>
                <Show Dialog="FatalError" OnExit="error" />
                <Show Dialog="UserExit" OnExit="cancel" />
                <Show Dialog="ExitDialog" OnExit="success" />
            </AdminUISequence>
        </UI>

        <UIRef Id="WixUI_Common" />
    </Fragment>
    <?foreach WIXUIARCH in X86;X64;A64 ?>
    <Fragment>
        <UI Id="WixUI_CustomInstallDir_$(WIXUIARCH)">
            <Publish Dialog="BrowseDlg" Control="OK" Event="DoAction" Value="WixUIValidatePath_$(WIXUIARCH)" Order="3" Condition="NOT WIXUI_DONTVALIDATEPATH" />
            <Publish Dialog="InstallDirDlg" Control="Next" Event="DoAction" Value="WixUIValidatePath_$(WIXUIARCH)" Order="2" Condition="NOT WIXUI_DONTVALIDATEPATH" />
        </UI>
    </Fragment>
    <?endforeach?>
</Wix>