diff --git a/winsup/cygwin/fhandler_process.cc b/winsup/cygwin/fhandler_process.cc
index 7efbc1f9c..f92decd50 100644
--- a/winsup/cygwin/fhandler_process.cc
+++ b/winsup/cygwin/fhandler_process.cc
@@ -589,10 +589,6 @@ struct heap_info
     NTSTATUS status;
     PDEBUG_HEAP_ARRAY harray;
 
-    /* FIXME?  RtlQueryProcessDebugInformation/CreateToolhelp32Snapshot both
-       crash the target process on 64 bit XP/2003 in native 64 bit mode. */
-    if (wincap.has_broken_rtl_query_process_debug_information ())
-      return;
     buf = RtlCreateQueryDebugBuffer (16 * 65536, FALSE);
     if (!buf)
       return;
diff --git a/winsup/cygwin/wincap.cc b/winsup/cygwin/wincap.cc
index f94390d81..3b9327be5 100644
--- a/winsup/cygwin/wincap.cc
+++ b/winsup/cygwin/wincap.cc
@@ -27,7 +27,6 @@ wincaps wincap_xpsp2 __attribute__((section (".cygwin_dll_common"), shared)) = {
   has_console_logon_sid:false,
   has_precise_system_time:false,
   has_microsoft_accounts:false,
-  has_broken_rtl_query_process_debug_information:false,
   has_processor_groups:false,
   has_broken_prefetchvm:false,
   has_new_pebteb_region:false,
@@ -44,7 +43,6 @@ wincaps wincap_2003 __attribute__((section (".cygwin_dll_common"), shared)) = {
   has_console_logon_sid:false,
   has_precise_system_time:false,
   has_microsoft_accounts:false,
-  has_broken_rtl_query_process_debug_information:true,
   has_processor_groups:false,
   has_broken_prefetchvm:false,
   has_new_pebteb_region:false,
@@ -61,7 +59,6 @@ wincaps wincap_vista __attribute__((section (".cygwin_dll_common"), shared)) = {
   has_console_logon_sid:false,
   has_precise_system_time:false,
   has_microsoft_accounts:false,
-  has_broken_rtl_query_process_debug_information:false,
   has_processor_groups:false,
   has_broken_prefetchvm:false,
   has_new_pebteb_region:false,
@@ -78,7 +75,6 @@ wincaps wincap_7 __attribute__((section (".cygwin_dll_common"), shared)) = {
   has_console_logon_sid:true,
   has_precise_system_time:false,
   has_microsoft_accounts:false,
-  has_broken_rtl_query_process_debug_information:false,
   has_processor_groups:true,
   has_broken_prefetchvm:false,
   has_new_pebteb_region:false,
@@ -95,7 +91,6 @@ wincaps wincap_8 __attribute__((section (".cygwin_dll_common"), shared)) = {
   has_console_logon_sid:true,
   has_precise_system_time:true,
   has_microsoft_accounts:true,
-  has_broken_rtl_query_process_debug_information:false,
   has_processor_groups:true,
   has_broken_prefetchvm:false,
   has_new_pebteb_region:false,
@@ -112,7 +107,6 @@ wincaps wincap_10 __attribute__((section (".cygwin_dll_common"), shared)) = {
   has_console_logon_sid:true,
   has_precise_system_time:true,
   has_microsoft_accounts:true,
-  has_broken_rtl_query_process_debug_information:false,
   has_processor_groups:true,
   has_broken_prefetchvm:true,
   has_new_pebteb_region:false,
@@ -129,7 +123,6 @@ wincaps wincap_10_1511 __attribute__((section (".cygwin_dll_common"), shared)) =
   has_console_logon_sid:true,
   has_precise_system_time:true,
   has_microsoft_accounts:true,
-  has_broken_rtl_query_process_debug_information:false,
   has_processor_groups:true,
   has_broken_prefetchvm:false,
   has_new_pebteb_region:true,
@@ -199,10 +192,6 @@ wincapc::init ()
   /* 64 bit systems have one more guard page than their 32 bit counterpart. */
   ++((wincaps *)caps)->def_guard_pages;
 #else
-  /* RtlQueryProcessDebugInformation/CreateToolhelp32Snapshot both crash the
-     target process on 64 bit XP/2003 in native 64 bit mode only.  Reset the
-     flag here for 32 bit. */
-  ((wincaps *)caps)->has_broken_rtl_query_process_debug_information = false;
   /* Windows 10 1511 has a stack move when a 64 bit process is started from
      a 32 bit process, just as it was vice versa in XP/2003.  Reset the flag
      here for 32 bit. */
diff --git a/winsup/cygwin/wincap.h b/winsup/cygwin/wincap.h
index e9ac86203..14837f7e0 100644
--- a/winsup/cygwin/wincap.h
+++ b/winsup/cygwin/wincap.h
@@ -20,7 +20,6 @@ struct wincaps
   unsigned has_console_logon_sid			: 1;
   unsigned has_precise_system_time			: 1;
   unsigned has_microsoft_accounts			: 1;
-  unsigned has_broken_rtl_query_process_debug_information : 1;
   unsigned has_processor_groups				: 1;
   unsigned has_broken_prefetchvm			: 1;
   unsigned has_new_pebteb_region			: 1;
@@ -62,7 +61,6 @@ public:
   bool	IMPLEMENT (has_console_logon_sid)
   bool	IMPLEMENT (has_precise_system_time)
   bool	IMPLEMENT (has_microsoft_accounts)
-  bool	IMPLEMENT (has_broken_rtl_query_process_debug_information)
   bool	IMPLEMENT (has_processor_groups)
   bool	IMPLEMENT (has_broken_prefetchvm)
   bool	IMPLEMENT (has_new_pebteb_region)