diff --git a/all.sas b/all.sas
index 371a2d2..b51cf41 100644
--- a/all.sas
+++ b/all.sas
@@ -8417,8 +8417,15 @@ options
                     prxchange('s/'!!'0A'x!!'/\n/',-1,
                     prxchange('s/'!!'0D'x!!'/\r/',-1,
                     prxchange('s/'!!'09'x!!'/\t/',-1,
+                    prxchange('s/'!!'00'x!!'/\\u0000/',-1, /* NUL */
+                    prxchange('s/'!!'0E'x!!'/\\u000E/',-1, /* SS  */
+                    prxchange('s/'!!'0F'x!!'/\\u000F/',-1, /* SF  */
+                    prxchange('s/'!!'01'x!!'/\\u0001/',-1, /* SOH */
+                    prxchange('s/'!!'02'x!!'/\\u0002/',-1, /* STX */
+                    prxchange('s/'!!'02'x!!'/\\u0010/',-1, /* DLE */
+                    prxchange('s/'!!'11'x!!'/\\u0011/',-1, /* DC1 */
                     prxchange('s/\\/\\\\/',-1,&&name&i)
-        )))))!!'"';
+        ))))))))))))!!'"';
       %end;
     %end;
     run;
@@ -14927,8 +14934,15 @@ data _null_;
   put '                    prxchange(''s/''!!''0A''x!!''/\n/'',-1, ';
   put '                    prxchange(''s/''!!''0D''x!!''/\r/'',-1, ';
   put '                    prxchange(''s/''!!''09''x!!''/\t/'',-1, ';
+  put '                    prxchange(''s/''!!''00''x!!''/\\u0000/'',-1, /* NUL */ ';
+  put '                    prxchange(''s/''!!''0E''x!!''/\\u000E/'',-1, /* SS  */ ';
+  put '                    prxchange(''s/''!!''0F''x!!''/\\u000F/'',-1, /* SF  */ ';
+  put '                    prxchange(''s/''!!''01''x!!''/\\u0001/'',-1, /* SOH */ ';
+  put '                    prxchange(''s/''!!''02''x!!''/\\u0002/'',-1, /* STX */ ';
+  put '                    prxchange(''s/''!!''02''x!!''/\\u0010/'',-1, /* DLE */ ';
+  put '                    prxchange(''s/''!!''11''x!!''/\\u0011/'',-1, /* DC1 */ ';
   put '                    prxchange(''s/\\/\\\\/'',-1,&&name&i) ';
-  put '        )))))!!''"''; ';
+  put '        ))))))))))))!!''"''; ';
   put '      %end; ';
   put '    %end; ';
   put '    run; ';
@@ -20388,8 +20402,15 @@ data _null_;
   put '                    prxchange(''s/''!!''0A''x!!''/\n/'',-1, ';
   put '                    prxchange(''s/''!!''0D''x!!''/\r/'',-1, ';
   put '                    prxchange(''s/''!!''09''x!!''/\t/'',-1, ';
+  put '                    prxchange(''s/''!!''00''x!!''/\\u0000/'',-1, /* NUL */ ';
+  put '                    prxchange(''s/''!!''0E''x!!''/\\u000E/'',-1, /* SS  */ ';
+  put '                    prxchange(''s/''!!''0F''x!!''/\\u000F/'',-1, /* SF  */ ';
+  put '                    prxchange(''s/''!!''01''x!!''/\\u0001/'',-1, /* SOH */ ';
+  put '                    prxchange(''s/''!!''02''x!!''/\\u0002/'',-1, /* STX */ ';
+  put '                    prxchange(''s/''!!''02''x!!''/\\u0010/'',-1, /* DLE */ ';
+  put '                    prxchange(''s/''!!''11''x!!''/\\u0011/'',-1, /* DC1 */ ';
   put '                    prxchange(''s/\\/\\\\/'',-1,&&name&i) ';
-  put '        )))))!!''"''; ';
+  put '        ))))))))))))!!''"''; ';
   put '      %end; ';
   put '    %end; ';
   put '    run; ';
diff --git a/base/mp_jsonout.sas b/base/mp_jsonout.sas
index dc750fc..c68fb30 100644
--- a/base/mp_jsonout.sas
+++ b/base/mp_jsonout.sas
@@ -203,8 +203,15 @@
                     prxchange('s/'!!'0A'x!!'/\n/',-1,
                     prxchange('s/'!!'0D'x!!'/\r/',-1,
                     prxchange('s/'!!'09'x!!'/\t/',-1,
+                    prxchange('s/'!!'00'x!!'/\\u0000/',-1, /* NUL */
+                    prxchange('s/'!!'0E'x!!'/\\u000E/',-1, /* SS  */
+                    prxchange('s/'!!'0F'x!!'/\\u000F/',-1, /* SF  */
+                    prxchange('s/'!!'01'x!!'/\\u0001/',-1, /* SOH */
+                    prxchange('s/'!!'02'x!!'/\\u0002/',-1, /* STX */
+                    prxchange('s/'!!'02'x!!'/\\u0010/',-1, /* DLE */
+                    prxchange('s/'!!'11'x!!'/\\u0011/',-1, /* DC1 */
                     prxchange('s/\\/\\\\/',-1,&&name&i)
-        )))))!!'"';
+        ))))))))))))!!'"';
       %end;
     %end;
     run;
diff --git a/meta/mm_createwebservice.sas b/meta/mm_createwebservice.sas
index 7e54e4b..374e1c7 100644
--- a/meta/mm_createwebservice.sas
+++ b/meta/mm_createwebservice.sas
@@ -236,8 +236,15 @@ data _null_;
   put '                    prxchange(''s/''!!''0A''x!!''/\n/'',-1, ';
   put '                    prxchange(''s/''!!''0D''x!!''/\r/'',-1, ';
   put '                    prxchange(''s/''!!''09''x!!''/\t/'',-1, ';
+  put '                    prxchange(''s/''!!''00''x!!''/\\u0000/'',-1, /* NUL */ ';
+  put '                    prxchange(''s/''!!''0E''x!!''/\\u000E/'',-1, /* SS  */ ';
+  put '                    prxchange(''s/''!!''0F''x!!''/\\u000F/'',-1, /* SF  */ ';
+  put '                    prxchange(''s/''!!''01''x!!''/\\u0001/'',-1, /* SOH */ ';
+  put '                    prxchange(''s/''!!''02''x!!''/\\u0002/'',-1, /* STX */ ';
+  put '                    prxchange(''s/''!!''02''x!!''/\\u0010/'',-1, /* DLE */ ';
+  put '                    prxchange(''s/''!!''11''x!!''/\\u0011/'',-1, /* DC1 */ ';
   put '                    prxchange(''s/\\/\\\\/'',-1,&&name&i) ';
-  put '        )))))!!''"''; ';
+  put '        ))))))))))))!!''"''; ';
   put '      %end; ';
   put '    %end; ';
   put '    run; ';
diff --git a/sasjs/sasjsconfig.json b/sasjs/sasjsconfig.json
index a02229f..a88f06c 100644
--- a/sasjs/sasjsconfig.json
+++ b/sasjs/sasjsconfig.json
@@ -93,6 +93,10 @@
       "serverType": "SAS9",
       "appLoc": "dummy",
       "macroFolders": [
+        "meta",
+        "metax",
+        "server",
+        "viya",
         "tests/sas9only",
         "tests/viyaonly"
       ]
diff --git a/viya/mv_createwebservice.sas b/viya/mv_createwebservice.sas
index 6b73e1d..fcb7abf 100644
--- a/viya/mv_createwebservice.sas
+++ b/viya/mv_createwebservice.sas
@@ -380,8 +380,15 @@ data _null_;
   put '                    prxchange(''s/''!!''0A''x!!''/\n/'',-1, ';
   put '                    prxchange(''s/''!!''0D''x!!''/\r/'',-1, ';
   put '                    prxchange(''s/''!!''09''x!!''/\t/'',-1, ';
+  put '                    prxchange(''s/''!!''00''x!!''/\\u0000/'',-1, /* NUL */ ';
+  put '                    prxchange(''s/''!!''0E''x!!''/\\u000E/'',-1, /* SS  */ ';
+  put '                    prxchange(''s/''!!''0F''x!!''/\\u000F/'',-1, /* SF  */ ';
+  put '                    prxchange(''s/''!!''01''x!!''/\\u0001/'',-1, /* SOH */ ';
+  put '                    prxchange(''s/''!!''02''x!!''/\\u0002/'',-1, /* STX */ ';
+  put '                    prxchange(''s/''!!''02''x!!''/\\u0010/'',-1, /* DLE */ ';
+  put '                    prxchange(''s/''!!''11''x!!''/\\u0011/'',-1, /* DC1 */ ';
   put '                    prxchange(''s/\\/\\\\/'',-1,&&name&i) ';
-  put '        )))))!!''"''; ';
+  put '        ))))))))))))!!''"''; ';
   put '      %end; ';
   put '    %end; ';
   put '    run; ';