diff --git a/druntime/src/core/sys/windows/sql.d b/druntime/src/core/sys/windows/sql.d
index 9054ce589e8..013d9f06e60 100644
--- a/druntime/src/core/sys/windows/sql.d
+++ b/druntime/src/core/sys/windows/sql.d
@@ -11,13 +11,15 @@ $(RED Warning:
  */
 
 module core.sys.windows.sql;
+
+enum ODBCVER = 0x0400;
+
+deprecated ("The ODBC 3.5 modules are deprecated. Please use the ODBC4 modules in the `etc.c.odbc` package."):
 version (Windows):
 
 public import core.sys.windows.sqltypes;
 import core.sys.windows.windef;
 
-enum ODBCVER = 0x0351;
-
 enum SQL_ACCESSIBLE_PROCEDURES=20;
 enum SQL_ACCESSIBLE_TABLES=19;
 enum SQL_ALL_TYPES=0;
diff --git a/druntime/src/core/sys/windows/sqlext.d b/druntime/src/core/sys/windows/sqlext.d
index b871fbbbb84..a53918394dc 100644
--- a/druntime/src/core/sys/windows/sqlext.d
+++ b/druntime/src/core/sys/windows/sqlext.d
@@ -11,6 +11,7 @@ $(RED Warning:
  */
 
 module core.sys.windows.sqlext;
+deprecated ("The ODBC 3.5 modules are deprecated. Please use the ODBC4 modules in the `etc.c.odbc` package."):
 version (Windows):
 
 /* Conversion notes:
diff --git a/druntime/src/core/sys/windows/sqltypes.d b/druntime/src/core/sys/windows/sqltypes.d
index 04fac6bac6a..ca91f015851 100644
--- a/druntime/src/core/sys/windows/sqltypes.d
+++ b/druntime/src/core/sys/windows/sqltypes.d
@@ -70,6 +70,10 @@ alias long   ODBCINT64, SQLBIGINT;
 alias ulong  SQLUBIGINT;
 //}
 
+//Everything above this line may by used by odbcinst.d
+//Everything below this line is deprecated
+deprecated ("The ODBC 3.5 modules are deprecated. Please use the ODBC4 modules in the `etc.c.odbc` package."):
+
 struct DATE_STRUCT {
     SQLSMALLINT year;
     SQLUSMALLINT month;
diff --git a/druntime/src/core/sys/windows/sqlucode.d b/druntime/src/core/sys/windows/sqlucode.d
index e7ae1d276be..d20952d5b4b 100644
--- a/druntime/src/core/sys/windows/sqlucode.d
+++ b/druntime/src/core/sys/windows/sqlucode.d
@@ -11,6 +11,7 @@ $(RED Warning:
  */
 
 module core.sys.windows.sqlucode;
+deprecated ("The ODBC 3.5 modules are deprecated. Please use the ODBC4 modules in the `etc.c.odbc` package."):
 version (Windows):
 
 version (ANSI) {} else version = Unicode;