diff --git a/Source/Makefile b/Source/Makefile
index 5a642b9b..57e5f914 100644
--- a/Source/Makefile
+++ b/Source/Makefile
@@ -6,7 +6,7 @@
 
 BUILDDIR=../build
 # -- Objects and source files --
-SRCS = zlib/deflate.c zlib/trees.c bzip2/blocksort.c bzip2/bzlib.c bzip2/compress.c bzip2/huffman.c 7zip/7zGuids.cpp 7zip/Common/CRC.cpp 7zip/7zip/Compress/LZ/LZInWindow.cpp 7zip/7zip/Compress/LZMA/LZMAEncoder.cpp 7zip/7zip/Common/OutBuffer.cpp 7zip/7zip/Compress/RangeCoder/RangeCoderBit.cpp 7zip/Common/Alloc.cpp build.cpp crc32.c DialogTemplate.cpp exedata.cpp lang.cpp makenssi.cpp Plugins.cpp ResourceEditor.cpp ResourceVersionInfo.cpp script.cpp tokens.cpp util.cpp strlist.cpp growbuf.cpp mmap.cpp clzma.cpp lineparse.cpp
+SRCS = zlib/deflate.c zlib/trees.c bzip2/blocksort.c bzip2/bzlib.c bzip2/compress.c bzip2/huffman.c 7zip/7zGuids.cpp 7zip/Common/CRC.cpp 7zip/7zip/Compress/LZ/LZInWindow.cpp 7zip/7zip/Compress/LZMA/LZMAEncoder.cpp 7zip/7zip/Common/OutBuffer.cpp 7zip/7zip/Compress/RangeCoder/RangeCoderBit.cpp 7zip/Common/Alloc.cpp build.cpp crc32.c DialogTemplate.cpp exedata.cpp lang.cpp makenssi.cpp Plugins.cpp ResourceEditor.cpp ResourceVersionInfo.cpp script.cpp tokens.cpp util.cpp strlist.cpp growbuf.cpp mmap.cpp clzma.cpp lineparse.cpp ShConstants.cpp
 OBJS = $(addprefix $(BUILDDIR)/,$(addsuffix .o,$(basename $(SRCS))))
 ifeq "$(strip $(findstring i386pe,$(shell ld -V)))" ""
 LIBS = -lstdc++ -lpthread
diff --git a/Source/ShConstants.cpp b/Source/ShConstants.cpp
new file mode 100644
index 00000000..122b156f
--- /dev/null
+++ b/Source/ShConstants.cpp
@@ -0,0 +1,69 @@
+#include "ShConstants.h"
+
+ConstantsStringList::ConstantsStringList()
+{
+  index = 0;
+}
+
+int ConstantsStringList::add(const char *name, int value1, int value2)
+{
+  int pos=SortedStringListND<struct constantstring>::add(name);
+  if (pos == -1) return -1;
+
+  ((struct constantstring*)gr.get())[pos].index = index;
+  ((struct constantstring*)gr.get())[pos].pos = pos;
+  ((struct constantstring*)gr.get())[pos].value1 = value1;
+  ((struct constantstring*)gr.get())[pos].value2 = value2;
+
+  int temp = index;
+  index++;
+
+  return temp;
+}
+
+int ConstantsStringList::get(char *name, int n_chars /*= -1*/)
+{
+  int v=SortedStringListND<struct constantstring>::find(name, n_chars);
+  if (v==-1) return -1;
+  return (((struct constantstring*)gr.get())[v].index);
+}
+
+int ConstantsStringList::getnum()
+{
+  return index;
+}
+
+int ConstantsStringList::get_value1(int idx)
+{
+  int pos=get_internal_idx(idx);
+  if (pos==-1) return -1;
+  return (((struct constantstring*)gr.get())[pos].value1);
+}
+
+int ConstantsStringList::get_value2(int idx)
+{
+  int pos=get_internal_idx(idx);
+  if (pos==-1) return -1;
+  return (((struct constantstring*)gr.get())[pos].value2);
+}
+
+char* ConstantsStringList::idx2name(int idx)
+{
+  int pos=get_internal_idx(idx);
+  if (pos==-1) return NULL;
+  struct constantstring *data=(struct constantstring *)gr.get();      
+  return ((char*)strings.get() + data[pos].name);
+}
+
+int ConstantsStringList::get_internal_idx(int idx)
+{
+  struct constantstring *data=(struct constantstring *)gr.get();      
+  for (int i = 0; i < index; i++)
+  {
+    if (data[i].index == idx)
+    {
+      return i;
+    }
+  }
+  return -1;
+}
diff --git a/Source/ShConstants.h b/Source/ShConstants.h
index 928123e9..19732cb0 100644
--- a/Source/ShConstants.h
+++ b/Source/ShConstants.h
@@ -3,7 +3,7 @@
 #ifndef ___CONSTANTS___H_____
 #define ___CONSTANTS___H_____
 
-#include "lang.h"
+#include "strlist.h"
 
 struct constantstring {
   int name;
@@ -16,76 +16,18 @@ struct constantstring {
 class ConstantsStringList : public SortedStringListND<struct constantstring>
 {
   public:
-    ConstantsStringList()
-    {
-      index = 0;
-    }
-    ~ConstantsStringList() { }
+    ConstantsStringList();
 
-    int add(const char *name, int value1, int value2)
-    {
-      int pos=SortedStringListND<struct constantstring>::add(name);
-      if (pos == -1) return -1;
-
-      ((struct constantstring*)gr.get())[pos].index = index;
-      ((struct constantstring*)gr.get())[pos].pos = pos;
-      ((struct constantstring*)gr.get())[pos].value1 = value1;
-      ((struct constantstring*)gr.get())[pos].value2 = value2;
-
-      int temp = index;
-      index++;
-
-      return temp;
-    }
-
-    int get(char *name, int n_chars = -1)
-    {
-      int v=SortedStringListND<struct constantstring>::find(name, n_chars);
-      if (v==-1) return -1;
-      return (((struct constantstring*)gr.get())[v].index);
-    }
-
-    int getnum()
-    {
-      return index;
-    }
-
-    int get_value1(int idx)
-    {
-      int pos=get_internal_idx(idx);
-      if (pos==-1) return -1;
-      return (((struct constantstring*)gr.get())[pos].value1);
-    }
-
-    int get_value2(int idx)
-    {
-      int pos=get_internal_idx(idx);
-      if (pos==-1) return -1;
-      return (((struct constantstring*)gr.get())[pos].value2);
-    }
-
-    char *idx2name(int idx)
-    {
-      int pos=get_internal_idx(idx);
-      if (pos==-1) return NULL;
-      struct constantstring *data=(struct constantstring *)gr.get();      
-      return ((char*)strings.get() + data[pos].name);
-    }
+    int add(const char *name, int value1, int value2);
+    int get(char *name, int n_chars = -1);
+    int getnum();
+    int get_value1(int idx);
+    int get_value2(int idx);
+    char *idx2name(int idx);
 
   private:
     int index;
-    int get_internal_idx(int idx)
-    {
-      struct constantstring *data=(struct constantstring *)gr.get();      
-      for (int i = 0; i < index; i++)
-      {
-        if (data[i].index == idx)
-        {
-          return i;
-        }
-      }
-      return -1;
-    }
+    int get_internal_idx(int idx);
 };
 
 #endif
diff --git a/Source/makenssi.dsp b/Source/makenssi.dsp
index a44bc2b3..bcf0afab 100644
--- a/Source/makenssi.dsp
+++ b/Source/makenssi.dsp
@@ -248,6 +248,10 @@ SOURCE=.\script.cpp
 # End Source File
 # Begin Source File
 
+SOURCE=.\ShConstants.cpp
+# End Source File
+# Begin Source File
+
 SOURCE=.\strlist.cpp
 # End Source File
 # Begin Source File