diff --git a/programs/taskmgr/graphctl.c b/programs/taskmgr/graphctl.c
index adfde9003a4..40acc612285 100644
--- a/programs/taskmgr/graphctl.c
+++ b/programs/taskmgr/graphctl.c
@@ -153,14 +153,14 @@ void GraphCtrl_SetRange(TGraphCtrl* this, double dLower, double dUpper, int nDec
 #if 0
 void TGraphCtrl::SetXUnits(const char* string)
 {
-    strncpy(m_strXUnitsString, string, sizeof(m_strXUnitsString) - 1);
+    lstrcpynA(m_strXUnitsString, string, sizeof(m_strXUnitsString));
     /*  clear out the existing garbage, re-start with a clean plot */
     InvalidateCtrl();
 }
 
 void TGraphCtrl::SetYUnits(const char* string)
 {
-    strncpy(m_strYUnitsString, string, sizeof(m_strYUnitsString) - 1);
+    lstrcpynA(m_strYUnitsString, string, sizeof(m_strYUnitsString));
     /*  clear out the existing garbage, re-start with a clean plot */
     InvalidateCtrl();
 }
diff --git a/programs/winemine/main.c b/programs/winemine/main.c
index 746645599b6..65783b5d38e 100644
--- a/programs/winemine/main.c
+++ b/programs/winemine/main.c
@@ -336,7 +336,7 @@ void LoadBoard( BOARD *p_board )
         if( RegQueryValueEx( hkey, key_name, NULL, (LPDWORD) &type,
                 (LPBYTE) data,
                 (LPDWORD) &size ) == ERROR_SUCCESS )
-                    strncpy( p_board->best_name[i], data, sizeof( data ) );
+                    lstrcpynA( p_board->best_name[i], data, sizeof(p_board->best_name[i]) );
         else
             LoadString( p_board->hInst, IDS_NOBODY, p_board->best_name[i], 16 );
     }
diff --git a/programs/winhelp/hlp2sgml.c b/programs/winhelp/hlp2sgml.c
index c0660fc723a..8063148fcb8 100644
--- a/programs/winhelp/hlp2sgml.c
+++ b/programs/winhelp/hlp2sgml.c
@@ -392,3 +392,18 @@ LPSTR WINAPI lstrcpyA( LPSTR dst, LPCSTR src )
     strcpy( dst, src );
     return dst;
 }
+
+LPSTR WINAPI lstrcpynA( LPSTR dst, LPCSTR src, INT n )
+{
+    LPSTR d = dst;
+    LPCSTR s = src;
+    UINT count = n;
+
+    while ((count > 1) && *s)
+    {
+        count--;
+        *d++ = *s++;
+    }
+    if (count) *d = 0;
+    return dst;
+}
diff --git a/programs/winhelp/hlpfile.c b/programs/winhelp/hlpfile.c
index 4810085282d..24d5d4e230c 100644
--- a/programs/winhelp/hlpfile.c
+++ b/programs/winhelp/hlpfile.c
@@ -1207,8 +1207,8 @@ static BOOL HLPFILE_ReadFont(HLPFILE* hlpfile)
 
         if (idx < face_num)
         {
-            strncpy(hlpfile->fonts[i].LogFont.lfFaceName, ref + face_offset + idx * len, min(len, LF_FACESIZE - 1));
-            hlpfile->fonts[i].LogFont.lfFaceName[min(len, LF_FACESIZE - 1) + 1] = '\0';
+            memcpy(hlpfile->fonts[i].LogFont.lfFaceName, ref + face_offset + idx * len, min(len, LF_FACESIZE - 1));
+            hlpfile->fonts[i].LogFont.lfFaceName[min(len, LF_FACESIZE - 1)] = '\0';
         }
         else
         {
@@ -1415,9 +1415,12 @@ static BOOL HLPFILE_SystemCommands(HLPFILE* hlpfile)
                 unsigned flags = GET_USHORT(ptr, 4);
                 HLPFILE_WINDOWINFO* wi = &hlpfile->windows[hlpfile->numWindows - 1];
 
-                if (flags & 0x0001) strcpy(wi->type, ptr + 6); else wi->type[0] = '\0';
-                if (flags & 0x0002) strcpy(wi->name, ptr + 16); else wi->name[0] = '\0';
-                if (flags & 0x0004) strcpy(wi->caption, ptr + 25); else strncpy(wi->caption, hlpfile->lpszTitle, sizeof(wi->caption));
+                if (flags & 0x0001) strcpy(wi->type, ptr + 6);
+                else wi->type[0] = '\0';
+                if (flags & 0x0002) strcpy(wi->name, ptr + 16);
+                else wi->name[0] = '\0';
+                if (flags & 0x0004) strcpy(wi->caption, ptr + 25);
+                else lstrcpynA(wi->caption, hlpfile->lpszTitle, sizeof(wi->caption));
                 wi->origin.x = (flags & 0x0008) ? GET_USHORT(ptr, 76) : CW_USEDEFAULT;
                 wi->origin.y = (flags & 0x0010) ? GET_USHORT(ptr, 78) : CW_USEDEFAULT;
                 wi->size.cx = (flags & 0x0020) ? GET_USHORT(ptr, 80) : CW_USEDEFAULT;