diff --git a/Source/HTMLCoverageReport.pas b/Source/HTMLCoverageReport.pas
index 36298a3..c54fc65 100644
--- a/Source/HTMLCoverageReport.pas
+++ b/Source/HTMLCoverageReport.pas
@@ -72,6 +72,7 @@   THTMLCoverageReport = class(TInterfacedObject, IReport)
 
     function PrettyPercentage(nbItems, nbTotal : Integer) : String;
 
+    function HtmlEncode(const AStr: string) : String;
   public
     constructor Create(const ACoverageConfiguration: ICoverageConfiguration);
 
@@ -90,9 +91,24 @@ implementation
 
 uses
   System.SysUtils,
+  {$IF CompilerVersion >= 28.0}
   System.NetEncoding,
+  {$ENDIF}
   JclFileUtils;
 
+function THTMLCoverageReport.HtmlEncode(const AStr: string) : String;
+begin
+  {$IF CompilerVersion >= 28.0}
+    Result := TNetEncoding.HTML.Encode(AStr);
+  {$ELSE}
+    Result := StringReplace(AStr, '&', '&', [rfReplaceAll]);
+    Result := StringReplace(Result, '<', '&lt;', [rfReplaceAll]);
+    Result := StringReplace(Result, '>', '&gt;', [rfReplaceAll]);
+    Result := StringReplace(Result, '"', '&quot;', [rfReplaceAll]);
+    Result := StringReplace(Result, '''', '&#39;', [rfReplaceAll]);
+  {$ENDIF}
+end;
+
 procedure THTMLCoverageReport.Generate(
   const ACoverage: ICoverageStats;
   const AModuleInfoList: TModuleList;
@@ -472,7 +488,7 @@ procedure THTMLCoverageReport.AddTableFooter(
   AOutputFile.WriteLine(
       '<tfoot>'
       + '<tr>'
-         + '<th>' + TNetEncoding.HTML.Encode(AHeading)
+         + '<th>' + HtmlEncode(AHeading)
          + '<th>' + IntToStr(coveredLineCount)
          + '<th>' + IntToStr(lineCount - coveredLineCount)
          + '<th>' + IntToStr(lineCount)
@@ -487,11 +503,11 @@ procedure THTMLCoverageReport.AddTableHeader(
   const AOutputFile: TTextWriter);
 begin
   AOutputFile.WriteLine(
-     '<p>' + TNetEncoding.HTML.Encode(ATableHeading) + '</p>'
+     '<p>' + HtmlEncode(ATableHeading) + '</p>'
    + '<table class="' + SummaryClass + '">'
       + '<thead>'
          + '<tr>'
-         + '<th rowspan=2 idx=0>' + TNetEncoding.HTML.Encode(AColumnHeading)
+         + '<th rowspan=2 idx=0>' + HtmlEncode(AColumnHeading)
          + '<th colspan=3 idx=3>Number of lines'
          + '<th rowspan=2 idx=4>Percent(s) covered'
        + '<tr>'
@@ -607,7 +623,7 @@ procedure THTMLCoverageReport.GenerateCoverageTable(
   while AInputFile.Peek <> -1 do
   begin
     InputLine := AInputFile.ReadLine;
-    InputLine := TNetEncoding.HTML.Encode(TrimRight(InputLine));
+    InputLine := HtmlEncode(TrimRight(InputLine));
     LineCoverage := ACoverageModule.CoverageLine[LineCoverageIter];
     if (LineCount = LineCoverage.LineNumber) then
     begin
@@ -628,7 +644,7 @@ procedure THTMLCoverageReport.GenerateCoverageTable(
   AOutputFile.WriteLine(
   '<script>(function () {'#10 +
     'var starts = [],' +
-      'prev = document.getElementById("nav-prev"),' +
+      'prev = document.getElementById("nav-prev"),' +
    	'next = document.getElementById("nav-next");'#10 +
     '(function () {'#10 +
       'var p;'#10 +
@@ -639,31 +655,31 @@ procedure THTMLCoverageReport.GenerateCoverageTable(
    		'} else { p = null }'#10 +
    	'})'#10 +
     '})();'#10 +
-    'function findPrev() {'#10 +
-	   'var y = prev.getBoundingClientRect().top - 4;'#10 +
-	   'for (var i=starts.length-1; i>=0; i--) {'#10 +
-		  'if (starts[i].getBoundingClientRect().top < y) return starts[i]'#10 +
-   	'}'#10 +
-    '}'#10 +
-    'function findNext() {'#10 +
-	   'var y = next.getBoundingClientRect().top + 4;'#10 +
-	   'for (var i=0; i<starts.length; i++) {'#10 +
+    'function findPrev() {'#10 +
+	   'var y = prev.getBoundingClientRect().top - 4;'#10 +
+	   'for (var i=starts.length-1; i>=0; i--) {'#10 +
+		  'if (starts[i].getBoundingClientRect().top < y) return starts[i]'#10 +
+   	'}'#10 +
+    '}'#10 +
+    'function findNext() {'#10 +
+	   'var y = next.getBoundingClientRect().top + 4;'#10 +
+	   'for (var i=0; i<starts.length; i++) {'#10 +
 		   'if (starts[i].getBoundingClientRect().top > y) return starts[i];'#10 +
-   	'}'#10 +
-    '}'#10 +
-    'function onScroll() {'#10 +
-	   'prev.setAttribute("class", findPrev() ? "active" : "");'#10 +
-	   'next.setAttribute("class", findNext() ? "active" : "");'#10 +
-	   'onScroll.pending = 0;'#10 +
-    '}'#10 +
-    'document.addEventListener("scroll", function() {'#10 +
-	   'if (!onScroll.pending) { onScroll.pending = requestAnimationFrame(onScroll) }'#10 +
-    '});'#10 +
+   	'}'#10 +
+    '}'#10 +
+    'function onScroll() {'#10 +
+	   'prev.setAttribute("class", findPrev() ? "active" : "");'#10 +
+	   'next.setAttribute("class", findNext() ? "active" : "");'#10 +
+	   'onScroll.pending = 0;'#10 +
+    '}'#10 +
+    'document.addEventListener("scroll", function() {'#10 +
+	   'if (!onScroll.pending) { onScroll.pending = requestAnimationFrame(onScroll) }'#10 +
+    '});'#10 +
     'onScroll();'#10 +
     'function scrollTo(row) {'#10 +
       'if (row) window.scrollTo({ behavior: "smooth", top: window.scrollY+row.getBoundingClientRect().top-prev.getBoundingClientRect().top });'#10 +
-    '}'#10 +
-    'next.addEventListener("click", () => scrollTo(findNext()) );'#10 +
+    '}'#10 +
+    'next.addEventListener("click", () => scrollTo(findNext()) );'#10 +
     'prev.addEventListener("click", () => scrollTo(findPrev()) );'#10 +
   '})();</script>'
   );
diff --git a/Test/CoverageConfigurationTest.pas b/Test/CoverageConfigurationTest.pas
index 1a0a3f3..6b92a0c 100644
--- a/Test/CoverageConfigurationTest.pas
+++ b/Test/CoverageConfigurationTest.pas
@@ -1518,13 +1518,13 @@ procedure TCoverageConfigurationTest.TestMixIncludeExcludeSourceMask;
   LCmdParams              : array of string;
   LCoverageConfiguration  : ICoverageConfiguration;
   I                       : Integer;
+  LINCLUDE_EXCLUDE_FILES_PREFIX: string;
 begin
-  const cINCLUDE_EXCLUDE_FILES_PREFIX = cINCLUDE_FILES_PREFIX + cEXCLUDE_FILES_PREFIX;
-
+  LINCLUDE_EXCLUDE_FILES_PREFIX := cINCLUDE_FILES_PREFIX + cEXCLUDE_FILES_PREFIX;
   LNumOfFiles := Random(20) + 10;
   SetLength(LCmdParams, LNumOfFiles + 5);
   LCmdParams[0] := '-esm';
-  LCmdParams[1] := cINCLUDE_EXCLUDE_FILES_PREFIX + '*';
+  LCmdParams[1] := LINCLUDE_EXCLUDE_FILES_PREFIX + '*';
   LCmdParams[2] := '-ism';
   LCmdParams[3] := cINCLUDE_FILES_PREFIX + '*';
   LCmdParams[4] := '-u';
@@ -1549,7 +1549,7 @@ procedure TCoverageConfigurationTest.TestMixIncludeExcludeSourceMask;
     LCoverageConfiguration.ParseCommandLine;
     for I := 0 to Pred(LTotalUnitList.Count) do
       if ((LeftStr(LTotalUnitList[I], Length(cINCLUDE_FILES_PREFIX)) = cINCLUDE_FILES_PREFIX)
-        and not (LeftStr(LTotalUnitList[I], Length(cINCLUDE_EXCLUDE_FILES_PREFIX)) = cINCLUDE_EXCLUDE_FILES_PREFIX)) then
+        and not (LeftStr(LTotalUnitList[I], Length(LINCLUDE_EXCLUDE_FILES_PREFIX)) = LINCLUDE_EXCLUDE_FILES_PREFIX)) then
         CheckNotEquals(-1, LCoverageConfiguration.Units.IndexOf(LTotalUnitList[I]), 'Missing included unit')
       else
         CheckEquals(-1, LCoverageConfiguration.Units.IndexOf(LTotalUnitList[I]), 'Unit should have been excluded');