diff --git a/source/code/common.cpp b/source/code/common.cpp
index 8dedc20..202361a 100644
--- a/source/code/common.cpp
+++ b/source/code/common.cpp
@@ -77,6 +77,22 @@ std::vector<std::string> split_string(const std::string& input, const std::strin
 	return out;
 }
 
+void replace_all(std::string& inout, const char* find_text, const char* replacement_text)
+{
+	const std::size_t find_len = std::strlen(find_text);
+	if (find_len == 0)
+	{
+		return; //would loop forever
+	}
+	const std::size_t repl_len = std::strlen(replacement_text);
+
+	std::size_t pos = 0;
+	while ((pos = inout.find(find_text, pos, find_len)) != std::string::npos) {
+		inout.replace(pos, find_len, replacement_text, repl_len);
+		pos += repl_len; // skip past the insert
+	}
+}
+
 /**
  * Takes a number of milliseconds and returns the value in commonTime format.
  */
diff --git a/source/code/common.h b/source/code/common.h
index e02d30e..e5dfddd 100644
--- a/source/code/common.h
+++ b/source/code/common.h
@@ -75,6 +75,14 @@ double str2double(const std::string &str2parse) __attribute__((const));
  */
 std::vector<std::string> split_string(const std::string& input, const std::string& sep);
 
+/**
+ * Does search and replace in a string.
+ * @param inout the string to modify
+ * @param find_text the text to find
+ * @param replacement_text the text to replace with
+ */
+void replace_all(std::string& inout, const char* find_text, const char* replacement_text);
+
 class TimeHandler
 {
 public:
diff --git a/source/code/os.cpp b/source/code/os.cpp
index cb1c527..77e0ece 100644
--- a/source/code/os.cpp
+++ b/source/code/os.cpp
@@ -32,7 +32,6 @@ https://blockattack.net
 #include <pwd.h>
 #include <unistd.h>
 #endif
-#include <boost/algorithm/string.hpp>
 #include <dirent.h>
 
 static sago::PlatformFolders pf;
@@ -123,7 +122,7 @@ void OsCreateFolder(const std::string& path) {
 	//Now for Windows Vista+
 	std::vector<std::string> element_vector;
 	std::string new_path = path;
-	boost::replace_all(new_path, "/", "\\");
+	replace_all(new_path, "/", "\\");
 	size_t pos = new_path.find("\\");
 	while ( pos != std::string::npos) {
 		std::string part_of_path = new_path.substr(0, pos);