diff --git a/CMakeLists.txt b/CMakeLists.txt
index d27ad5b..a8da514 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -5,12 +5,10 @@ set (HEADERS
   include/Telegram/PhotoSize.h
   include/Telegram/User.h
   include/Telegram/Chat.h
-  include/Telegram/exec.h
   include/Telegram/Location.h
   include/Telegram/std.h
   include/Telegram/Venue.h
   include/Telegram/Contact.h
-  include/Telegram/explode.h
   include/Telegram/MessageEntity.h
   include/Telegram/Sticker.h
   include/Telegram/Video.h
@@ -27,12 +25,10 @@ set (SOURCES
   src/PhotoSize.cc
   src/User.cc
   src/Chat.cc
-  src/exec.cc
   src/Location.cc
   src/std.cc
   src/Venue.cc
   src/Contact.cc
-  src/explode.cc
   src/MessageEntity.cc
   src/Sticker.cc
   src/Video.cc
@@ -66,4 +62,3 @@ target_link_libraries(tgbotpp ${LIBS})
 install(TARGETS tgbotpp DESTINATION lib)
 install(FILES ${HEADERS} DESTINATION include/Telegram)
 install(FILES tgbotpp.pc DESTINATION "${INSTALL_PKGCONFIG_DIR}")
-
diff --git a/include/Telegram/exec.h b/include/Telegram/exec.h
deleted file mode 100644
index 509a5a1..0000000
--- a/include/Telegram/exec.h
+++ /dev/null
@@ -1,8 +0,0 @@
-#ifndef __EXEC_H__
-#define __EXEC_H__
-
-#include <string>
-
-std::string exec(const char*);
-
-#endif
diff --git a/include/Telegram/explode.h b/include/Telegram/explode.h
deleted file mode 100644
index 2be65b3..0000000
--- a/include/Telegram/explode.h
+++ /dev/null
@@ -1,9 +0,0 @@
-#ifndef __explode_h__
-#define __explode_h__
-
-#include <string>
-#include <vector>
-
-std::vector<std::string> explode( const std::string&, const std::string &);
-
-#endif
diff --git a/src/exec.cc b/src/exec.cc
deleted file mode 100644
index 3b94c47..0000000
--- a/src/exec.cc
+++ /dev/null
@@ -1,21 +0,0 @@
-#include "Telegram/exec.h"
-
-#include <iostream>
-#include <stdio.h>
-
-std::string exec(const char* cmd) {
-
-  FILE* pipe = popen(cmd, "r");
-  if (!pipe)
-    return "ERROR";
-
-  char buffer[128];
-  std::string result = "";
-  while (!feof(pipe)) {
-    if (fgets(buffer, 128, pipe) != NULL)
-      result += buffer;
-  }
-  pclose(pipe);
-
-  return result;
-}
diff --git a/src/explode.cc b/src/explode.cc
deleted file mode 100644
index 7477e5d..0000000
--- a/src/explode.cc
+++ /dev/null
@@ -1,28 +0,0 @@
-#include "Telegram/explode.h"
-
-std::vector<std::string> explode( const std::string &delimiter, const std::string &str) {
-
-  std::vector<std::string> arr;
-
-  int strleng = str.length();
-  int delleng = delimiter.length();
-  if (delleng == 0)
-    return arr;//no change
-
-  int i = 0;
-  int k = 0;
-  while(i < strleng) {
-    int j = 0;
-    while ((i+j < strleng) && (j < delleng) && (str[i+j] == delimiter[j]))
-      j++;
-    if (j == delleng) {
-      arr.push_back(str.substr(k, i-k));
-      i += delleng;
-      k = i;
-    } else {
-      i++;
-    }
-  }
-  arr.push_back(str.substr(k, i-k));
-  return arr;
-}