diff --git a/dlls/msi/action.c b/dlls/msi/action.c
index e11421b..8dd2476 100644
--- a/dlls/msi/action.c
+++ b/dlls/msi/action.c
@@ -2859,9 +2859,11 @@
                 continue;
 
             if (package->Context == MSIINSTALLCONTEXT_MACHINE)
-                rc = MSIREG_OpenLocalUserDataComponentKey(comp->ComponentId, &hkey, TRUE);
+                rc = MSIREG_OpenUserDataComponentKey(comp->ComponentId, szLocalSid,
+                                                     &hkey, TRUE);
             else
-                rc = MSIREG_OpenUserDataComponentKey(comp->ComponentId, &hkey, TRUE);
+                rc = MSIREG_OpenUserDataComponentKey(comp->ComponentId, NULL,
+                                                     &hkey, TRUE);
 
             if (rc != ERROR_SUCCESS)
                 continue;
diff --git a/dlls/msi/msi.c b/dlls/msi/msi.c
index 7de78f9..b2664e6 100644
--- a/dlls/msi/msi.c
+++ b/dlls/msi/msi.c
@@ -618,7 +618,7 @@
     if (!squash_guid(szComponent, squished_comp))
         return ERROR_INVALID_PARAMETER;
 
-    if (MSIREG_OpenUserDataComponentKey(szComponent, &compkey, FALSE) != ERROR_SUCCESS &&
+    if (MSIREG_OpenUserDataComponentKey(szComponent, NULL, &compkey, FALSE) != ERROR_SUCCESS &&
         MSIREG_OpenLocalSystemComponentKey(szComponent, &compkey, FALSE) != ERROR_SUCCESS)
     {
         return ERROR_UNKNOWN_COMPONENT;
@@ -1326,7 +1326,7 @@
     if (context == MSIINSTALLCONTEXT_MACHINE)
         r = MSIREG_OpenLocalSystemComponentKey(comp, &hkey, FALSE);
     else
-        r = MSIREG_OpenUserDataComponentKey(comp, &hkey, FALSE);
+        r = MSIREG_OpenUserDataComponentKey(comp, NULL, &hkey, FALSE);
 
     if (r != ERROR_SUCCESS)
         return FALSE;
@@ -1777,7 +1777,7 @@
     state = INSTALLSTATE_UNKNOWN;
 
     if (MSIREG_OpenLocalSystemComponentKey(szComponent, &hkey, FALSE) == ERROR_SUCCESS ||
-        MSIREG_OpenUserDataComponentKey(szComponent, &hkey, FALSE) == ERROR_SUCCESS)
+        MSIREG_OpenUserDataComponentKey(szComponent, NULL, &hkey, FALSE) == ERROR_SUCCESS)
     {
         path = msi_reg_get_val_str(hkey, squished_pc);
         RegCloseKey(hkey);
@@ -1803,7 +1803,7 @@
         RegCloseKey(hkey);
 
         if (MSIREG_OpenLocalSystemComponentKey(szComponent, &hkey, FALSE) == ERROR_SUCCESS ||
-            MSIREG_OpenUserDataComponentKey(szComponent, &hkey, FALSE) == ERROR_SUCCESS)
+            MSIREG_OpenUserDataComponentKey(szComponent, NULL, &hkey, FALSE) == ERROR_SUCCESS)
         {
             msi_free(path);
             path = msi_reg_get_val_str(hkey, squished_pc);
@@ -1991,9 +1991,9 @@
         StringFromGUID2(&guid, comp, GUID_SIZE);
 
         if (machine)
-            rc = MSIREG_OpenLocalUserDataComponentKey(comp, &hkey, FALSE);
+            rc = MSIREG_OpenUserDataComponentKey(comp, szLocalSid, &hkey, FALSE);
         else
-            rc = MSIREG_OpenUserDataComponentKey(comp, &hkey, FALSE);
+            rc = MSIREG_OpenUserDataComponentKey(comp, NULL, &hkey, FALSE);
 
         if (rc != ERROR_SUCCESS)
         {
diff --git a/dlls/msi/msipriv.h b/dlls/msi/msipriv.h
index ed2e349..6f5299c 100644
--- a/dlls/msi/msipriv.h
+++ b/dlls/msi/msipriv.h
@@ -773,8 +773,8 @@
 UINT MSIREG_OpenUserDataFeaturesKey(LPCWSTR szProduct, MSIINSTALLCONTEXT context,
                                     HKEY *key, BOOL create);
 extern UINT MSIREG_OpenUserComponentsKey(LPCWSTR szComponent, HKEY* key, BOOL create);
-extern UINT MSIREG_OpenLocalUserDataComponentKey(LPCWSTR szComponent, HKEY *key, BOOL create);
-extern UINT MSIREG_OpenUserDataComponentKey(LPCWSTR szComponent, HKEY *key, BOOL create);
+extern UINT MSIREG_OpenUserDataComponentKey(LPCWSTR szComponent, LPCWSTR szUserSid,
+                                            HKEY *key, BOOL create);
 extern UINT MSIREG_OpenPatchesKey(LPCWSTR szPatch, HKEY* key, BOOL create);
 extern UINT MSIREG_OpenUserDataProductKey(LPCWSTR szProduct, LPCWSTR szUserSid,
                                           HKEY* key, BOOL create);
diff --git a/dlls/msi/registry.c b/dlls/msi/registry.c
index c624ffd..c8ea83f 100644
--- a/dlls/msi/registry.c
+++ b/dlls/msi/registry.c
@@ -753,24 +753,6 @@
     return rc;
 }
 
-UINT MSIREG_OpenLocalUserDataComponentKey(LPCWSTR szComponent, HKEY *key, BOOL create)
-{
-    WCHAR comp[GUID_SIZE];
-    WCHAR keypath[0x200];
-
-    TRACE("%s\n", debugstr_w(szComponent));
-    if (!squash_guid(szComponent, comp))
-        return ERROR_FUNCTION_FAILED;
-    TRACE("squished (%s)\n", debugstr_w(comp));
-
-    sprintfW(keypath, szUserDataComp_fmt, szLocalSid, comp);
-
-    if (create)
-        return RegCreateKeyW(HKEY_LOCAL_MACHINE, keypath, key);
-
-    return RegOpenKeyW(HKEY_LOCAL_MACHINE, keypath, key);
-}
-
 UINT MSIREG_DeleteLocalUserDataComponentKey(LPCWSTR szComponent)
 {
     WCHAR comp[GUID_SIZE];
@@ -785,7 +767,8 @@
     return RegDeleteTreeW(HKEY_LOCAL_MACHINE, keypath);
 }
 
-UINT MSIREG_OpenUserDataComponentKey(LPCWSTR szComponent, HKEY *key, BOOL create)
+UINT MSIREG_OpenUserDataComponentKey(LPCWSTR szComponent, LPCWSTR szUserSid,
+                                     HKEY *key, BOOL create)
 {
     UINT rc;
     WCHAR comp[GUID_SIZE];
@@ -797,21 +780,26 @@
         return ERROR_FUNCTION_FAILED;
     TRACE("squished (%s)\n", debugstr_w(comp));
 
-    rc = get_user_sid(&usersid);
-    if (rc != ERROR_SUCCESS || !usersid)
+    if (!szUserSid)
     {
-        ERR("Failed to retrieve user SID: %d\n", rc);
-        return rc;
-    }
+        rc = get_user_sid(&usersid);
+        if (rc != ERROR_SUCCESS || !usersid)
+        {
+            ERR("Failed to retrieve user SID: %d\n", rc);
+            return rc;
+        }
 
-    sprintfW(keypath, szUserDataComp_fmt, usersid, comp);
+        sprintfW(keypath, szUserDataComp_fmt, usersid, comp);
+        LocalFree(usersid);
+    }
+    else
+        sprintfW(keypath, szUserDataComp_fmt, szUserSid, comp);
 
     if (create)
         rc = RegCreateKeyW(HKEY_LOCAL_MACHINE, keypath, key);
     else
         rc = RegOpenKeyW(HKEY_LOCAL_MACHINE, keypath, key);
 
-    LocalFree(usersid);
     return rc;
 }
 
@@ -1433,7 +1421,7 @@
     if (!szComponent || !*szComponent || !szProduct)
         return ERROR_INVALID_PARAMETER;
 
-    if (MSIREG_OpenUserDataComponentKey(szComponent, &hkeyComp, FALSE) != ERROR_SUCCESS &&
+    if (MSIREG_OpenUserDataComponentKey(szComponent, NULL, &hkeyComp, FALSE) != ERROR_SUCCESS &&
         MSIREG_OpenLocalSystemComponentKey(szComponent, &hkeyComp, FALSE) != ERROR_SUCCESS)
         return ERROR_UNKNOWN_COMPONENT;