diff --git a/include/wx/textctrl.h b/include/wx/textctrl.h
index b86137bc11..926e6c226b 100644
--- a/include/wx/textctrl.h
+++ b/include/wx/textctrl.h
@@ -25,13 +25,11 @@
 #include "wx/dynarray.h"        // wxArrayInt
 #include "wx/gdicmn.h"          // wxPoint
 
-// Open Watcom 1.3 does allow only ios::rdbuf() while
-// we want something with streambuf parameter
-// Also, can't use streambuf if making or using a DLL :-(
-
+// some compilers don't have standard compliant rdbuf() (and MSVC has it only
+// in its new iostream library, not in the old one used with iostream.h)
 #if defined(__WATCOMC__) || \
     defined(__MWERKS__) || \
-    (defined(__WINDOWS__) && (defined(WXUSINGDLL) || defined(WXMAKINGDLL)))
+    ((defined(__VISUALC5__) || defined(__VISUALC6__)) && wxUSE_IOSTREAMH)
     #define wxHAS_TEXT_WINDOW_STREAM 0
 #elif wxUSE_STD_IOSTREAM
     #include "wx/ioswrap.h"