diff --git a/start_blockserver.bat b/start_blockserver.bat
index 80e6f33b..ae6c5293 100644
--- a/start_blockserver.bat
+++ b/start_blockserver.bat
@@ -2,7 +2,7 @@ REM @echo off
 setlocal
 set MYDIRBLOCK=%~dp0
 call %MYDIRBLOCK%stop_blockserver.bat
-set CYGWIN=nodosfilewarning
+set CYGWIN=disable_pcon
 call %MYDIRBLOCK%..\..\..\config_env_base.bat
 
 set EPICS_CAS_INTF_ADDR_LIST=127.0.0.1
diff --git a/start_database_server.bat b/start_database_server.bat
index 28b7935a..96f2cd92 100644
--- a/start_database_server.bat
+++ b/start_database_server.bat
@@ -2,7 +2,7 @@ REM @echo off
 setlocal
 set MYDIRBLOCK=%~dp0
 call %MYDIRBLOCK%stop_database_server.bat
-set CYGWIN=nodosfilewarning
+set CYGWIN=disable_pcon
 call %MYDIRBLOCK%..\..\..\config_env_base.bat
 
 set EPICS_CAS_INTF_ADDR_LIST=127.0.0.1