msi: Remove child folders first in the RemoveFolders action.

dlls/msi/action.c

@@ -884,6 +884,20 @@ static UINT ACTION_CreateFolders(MSIPACKAGE *package)
     return rc;
 }
 
+static void remove_persistent_folder( MSIFOLDER *folder )
+{
+    FolderList *fl;
+
+    LIST_FOR_EACH_ENTRY( fl, &folder->children, FolderList, entry )
+    {
+        remove_persistent_folder( fl->folder );
+    }
+    if (folder->persistent && folder->State != FOLDER_STATE_REMOVED)
+    {
+        if (RemoveDirectoryW( folder->ResolvedTarget )) folder->State = FOLDER_STATE_REMOVED;
+    }
+}
+
 static UINT ITERATE_RemoveFolders( MSIRECORD *row, LPVOID param )
 {
     MSIPACKAGE *package = param;
@@ -927,9 +941,8 @@ static UINT ITERATE_RemoveFolders( MSIRECORD *row, LPVOID param )
     msi_ui_actiondata( package, szRemoveFolders, uirow );
     msiobj_release( &uirow->hdr );
 
-    RemoveDirectoryW( full_path );
     folder = msi_get_loaded_folder( package, dir );
-    folder->State = FOLDER_STATE_REMOVED;
+    remove_persistent_folder( folder );
     return ERROR_SUCCESS;
 }