From ad1aa156dca80c9da759c0b3325ae72d0ed3a0a5 Mon Sep 17 00:00:00 2001
From: Bill Zissimopoulos <billziss@navimatics.com>
Date: Wed, 7 Sep 2022 20:18:54 +0100
Subject: [PATCH] installer: SxS: WIP

---
 build/VStudio/installer/Product.wxs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/build/VStudio/installer/Product.wxs b/build/VStudio/installer/Product.wxs
index dcb165e4..2b74c95d 100644
--- a/build/VStudio/installer/Product.wxs
+++ b/build/VStudio/installer/Product.wxs
@@ -66,7 +66,7 @@
             NOT INSTALLDIR
         </SetProperty>
         <SetProperty Id="SXSDIR" Value="[INSTALLDIR]SxS\sxs.[InstanceID]\" After="SetINSTALLDIR">
-            NOT SXSDIR
+            ((NOT SXSDIR) OR WIX_UPGRADE_DETECTED) AND InstanceID
         </SetProperty>
 
         <!-- Setup directory structure. -->