diff --git a/plugins/org.jkiss.dbeaver.ext.mssql/src/org/jkiss/dbeaver/ext/mssql/SQLServerConstants.java b/plugins/org.jkiss.dbeaver.ext.mssql/src/org/jkiss/dbeaver/ext/mssql/SQLServerConstants.java
index 5a53e4b7b63688bb3f35e6267242a42404a8e47f..2a60969ee6422f188bfca67e26cec8faa1e31075 100644
--- a/plugins/org.jkiss.dbeaver.ext.mssql/src/org/jkiss/dbeaver/ext/mssql/SQLServerConstants.java
+++ b/plugins/org.jkiss.dbeaver.ext.mssql/src/org/jkiss/dbeaver/ext/mssql/SQLServerConstants.java
@@ -34,4 +34,5 @@ public class SQLServerConstants {
     // https://support.microsoft.com/en-us/help/321185/how-to-determine-the-version--edition-and-update-level-of-sql-server-a
     public static final int SQL_SERVER_2016_VERSION_MAJOR = 13;
     public static final int SQL_SERVER_2008_VERSION_MAJOR = 10;
+    public static final int SQL_SERVER_2005_VERSION_MAJOR = 9;
 }
diff --git a/plugins/org.jkiss.dbeaver.ext.mssql/src/org/jkiss/dbeaver/ext/mssql/model/SQLServerMetaModel.java b/plugins/org.jkiss.dbeaver.ext.mssql/src/org/jkiss/dbeaver/ext/mssql/model/SQLServerMetaModel.java
index 52b6f22be40b8178f7f3cd4d09915d3f6a06a210..614b2bfedcf281ceea0c73fc8111765845785267 100644
--- a/plugins/org.jkiss.dbeaver.ext.mssql/src/org/jkiss/dbeaver/ext/mssql/model/SQLServerMetaModel.java
+++ b/plugins/org.jkiss.dbeaver.ext.mssql/src/org/jkiss/dbeaver/ext/mssql/model/SQLServerMetaModel.java
@@ -22,6 +22,7 @@ import org.jkiss.dbeaver.DBException;
 import org.jkiss.dbeaver.Log;
 import org.jkiss.dbeaver.ext.generic.model.*;
 import org.jkiss.dbeaver.ext.generic.model.meta.GenericMetaModel;
+import org.jkiss.dbeaver.ext.mssql.SQLServerConstants;
 import org.jkiss.dbeaver.model.DBPDataSourceContainer;
 import org.jkiss.dbeaver.model.DBPEvaluationContext;
 import org.jkiss.dbeaver.model.DBUtils;
@@ -80,7 +81,7 @@ public class SQLServerMetaModel extends GenericMetaModel implements DBCQueryTran
 
     @Override
     public String getProcedureDDL(DBRProgressMonitor monitor, GenericProcedure sourceObject) throws DBException {
-        if (isSqlServer()) {
+        if (isSqlServer() && sourceObject.getDataSource().isServerVersionAtLeast(SQLServerConstants.SQL_SERVER_2005_VERSION_MAJOR,0)) {
             try (JDBCSession session = DBUtils.openMetaSession(monitor, sourceObject.getDataSource(), "Read routine definition")) {
                 try (JDBCPreparedStatement dbStat = session.prepareStatement(
                     "SELECT definition FROM " + DBUtils.getQuotedIdentifier(sourceObject.getCatalog()) + ".sys.sql_modules WHERE object_id=OBJECT_ID(?)"
@@ -228,7 +229,7 @@ public class SQLServerMetaModel extends GenericMetaModel implements DBCQueryTran
         String sysSchema = DBUtils.getQuotedIdentifier(catalog) + "." + getSystemSchema();
         String sql;
         if (showAllSchemas) {
-            if (getServerType() == ServerType.SQL_SERVER && dataSource.isServerVersionAtLeast(9 ,0)) {
+            if (getServerType() == ServerType.SQL_SERVER && dataSource.isServerVersionAtLeast(SQLServerConstants.SQL_SERVER_2005_VERSION_MAJOR ,0)) {
                 sql = "SELECT name FROM " + DBUtils.getQuotedIdentifier(catalog) + ".sys.schemas";
             } else {
                 sql = "SELECT name FROM " + DBUtils.getQuotedIdentifier(catalog) + ".dbo.sysusers";