diff --git a/Tools/UnitTests/Source/TKernel/TCString_Tests.cpp b/Tools/UnitTests/Source/TKernel/TCString_Tests.cpp
index 13d0a52..7e9f428 100644
--- a/Tools/UnitTests/Source/TKernel/TCString_Tests.cpp
+++ b/Tools/UnitTests/Source/TKernel/TCString_Tests.cpp
@@ -7,4 +7,12 @@ TEST_CASE("Constructor", "[TCString]")
 {
 	TCString string("ABCD");
 	REQUIRE(string == "ABCD");
+}
+
+TEST_CASE("Concat Strings", "[TCString]")
+{
+	TCString string("ABCD");
+	TCString string2("EFGH");
+	string += string2;
+	REQUIRE(string == "ABCDEFGH");
 }
\ No newline at end of file
diff --git a/Toshi/Include/TKernel/TCString.h b/Toshi/Include/TKernel/TCString.h
index dbdf553..3cfa3af 100644
--- a/Toshi/Include/TKernel/TCString.h
+++ b/Toshi/Include/TKernel/TCString.h
@@ -39,6 +39,7 @@ class TOSHI_EXPORT TCString
 		FreeBuffer();
 	}
 
+	TCString& Concat(TCString const& a_rString, TINT a_iLength = -1);
 	TINT Compare(TPCCHAR a_pcString, int a_iLength = -1) const;
 
 	void Copy(const TCString& a_rOther, TINT a_iLength = -1);
@@ -47,6 +48,8 @@ class TOSHI_EXPORT TCString
 	TCString& __cdecl Format(TPCCHAR a_pcFormat, ...);
 	TINT Find(char a_cFind, TINT a_iIndex = 0) const;
 
+	void Truncate(TINT a_iLength);
+
 	TBOOL IsIndexValid(TINT a_iIndex = 0) const
 	{
 		return a_iIndex <= m_iStrLen && a_iIndex >= 0;
@@ -99,6 +102,12 @@ class TOSHI_EXPORT TCString
 		return *this;
 	}
 
+	TCString& operator+=(TCString const& a_rString)
+	{
+		Concat(a_rString);
+		return *this;
+	}
+
 	TCCHAR& operator[](TINT a_iIndex) const
 	{
 		TASSERT((a_iIndex>=0) && (a_iIndex<=(TINT)m_iStrLen));
diff --git a/Toshi/Include/TKernel/TFile.h b/Toshi/Include/TKernel/TFile.h
index 8474311..70cf8ad 100644
--- a/Toshi/Include/TKernel/TFile.h
+++ b/Toshi/Include/TKernel/TFile.h
@@ -111,12 +111,15 @@ class TOSHI_EXPORT TFileManager
     void MountFileSystem(TFileSystem* a_pFileSystem);
     void UnmountFileSystem(TFileSystem* a_pFileSystem);
 
+    TCString MakeAbsolutePath(TCString const& a_rPath);
+
     static TFileManager* __stdcall GetFileManager() { return s_pFileManager; }
     void SetSystemPath(TCString const& a_rSysPath)
     {
         m_pcSystemPath = a_rSysPath;
         InvalidateSystemPath();
     }
+    TCString const& GetWorkingDirectory() const { return m_pcWorkingDirectory; }
 
 private:
     void ValidateSystemPath();
@@ -175,6 +178,7 @@ class TOSHI_EXPORT TFile
     static TFile* Create(const TCString& a_sName, TUINT a_uiMode);
     static void Destroy(TFile* a_pFile);
     static void PrintFileAccess(TBOOL a_bFileAccess) {}
+    static TCString __stdcall ConcatPath(TCString const& a_rPath1, TCString const& a_rPath2);
 
     void Destroy();
     TFileSystem* GetFileSystem() const { return m_pFileSystem; }
diff --git a/Toshi/Include/TKernel/TSystem.h b/Toshi/Include/TKernel/TSystemTools.h
similarity index 80%
rename from Toshi/Include/TKernel/TSystem.h
rename to Toshi/Include/TKernel/TSystemTools.h
index 9dcc8f6..92bd629 100644
--- a/Toshi/Include/TKernel/TSystem.h
+++ b/Toshi/Include/TKernel/TSystemTools.h
@@ -9,6 +9,7 @@ class TOSHI_EXPORT TSystem
 
 	static TINT __stdcall StringLength(TPCCHAR a_String);
 	static TINT __stdcall StringCompareNoCase(TPCCHAR a_String1, TPCCHAR a_String2, TINT a_uiSize);
+	static TCHAR const* __stdcall StringCopy(TPCHAR a_DestinationString, TCHAR const* a_SourceString, TINT a_iCount);
 	static TPVOID __stdcall MemCopy(TPVOID a_dest, TPCVOID a_src, TUINT a_iSize);
 
 	static TPBYTE GetScratchMem() { return ms_aScratchMem; }
diff --git a/Toshi/Include/TKernel/Win/TNativeFileWin.h b/Toshi/Include/TKernel/Win/TNativeFileWin.h
index 6b0ff03..1ea1248 100644
--- a/Toshi/Include/TKernel/Win/TNativeFileWin.h
+++ b/Toshi/Include/TKernel/Win/TNativeFileWin.h
@@ -13,7 +13,7 @@ class TOSHI_EXPORT TNativeFileSystem : public TFileSystem
 	virtual TFile* CreateFile(Toshi::TCString const& a_rFilename, TUINT a_uiMode) override;
 	virtual void DestroyFile(TFile* a_pFile) override;
 	virtual TBOOL RemoveFile(TCString const& a_rFilename) override;
-	virtual TCString MakeInternalPath(const TCString& a_rsPath) override;
+	virtual TCString MakeInternalPath(TCString const& a_rsPath) override;
 
 private:
 	HANDLE m_hFileSystem; // 0x1C
diff --git a/Toshi/Source/TKernel/TCString.cpp b/Toshi/Source/TKernel/TCString.cpp
index 828b103..50c3bc7 100644
--- a/Toshi/Source/TKernel/TCString.cpp
+++ b/Toshi/Source/TKernel/TCString.cpp
@@ -1,6 +1,7 @@
 #include "TCString.h"
-#include "TSystem.h"
+#include "TSystemTools.h"
 #include <string.h>
+#include <TKernel/TMemory.h>
 
 TOSHI_NAMESPACE_USING
 
@@ -36,10 +37,30 @@ TBOOL TCString::AllocBuffer(TINT a_iLength, TBOOL a_bClear)
 		}
 		m_iStrLen = a_iLength;
 	}
-	if (a_bClear) m_pBuffer[0] = 0;
+	if (a_bClear) m_pBuffer[0] = '\0';
 	return hasChanged;
 }
 
+TCString& TCString::Concat(TCString const& a_rString, TINT a_iLength)
+{
+	TINT len = a_rString.Length();
+	if (len < a_iLength || a_iLength == -1) {
+		a_iLength = len;
+	}
+	TPCHAR pBuffer = m_pBuffer;
+	len = Length();
+	TBOOL ret = AllocBuffer(len + a_iLength, TFALSE);
+	if (ret) {
+		TSystem::StringCopy(m_pBuffer, pBuffer, -1);
+	}
+	TSystem::StringCopy(m_pBuffer + len, a_rString.m_pBuffer, a_iLength);
+	m_pBuffer[len + a_iLength] = '\0';
+	if (ret && len != 0) {
+		tfree(pBuffer);
+	}
+	return *this;
+}
+
 TINT TCString::Compare(TPCCHAR a_pcString, int a_iLength) const
 {
 	TASSERT(a_pcString!=TNULL);
@@ -91,3 +112,20 @@ TINT TCString::Find(char a_cFind, TINT a_iIndex) const
 
 	return foundAt - GetString();
 }
+
+void TCString::Truncate(TINT a_iLength)
+{
+	TINT len = Length();
+	if (len < a_iLength) {
+		a_iLength = len;
+	}
+	TPCHAR pBuffer = m_pBuffer;
+	TBOOL ret = AllocBuffer(a_iLength, TFALSE);
+	if (ret) {
+		TSystem::StringCopy(m_pBuffer, pBuffer, a_iLength);
+	}
+	m_pBuffer[a_iLength] = '\0';
+	if (ret && len != 0) {
+		tfree(pBuffer);
+	}
+}
diff --git a/Toshi/Source/TKernel/TDebug.cpp b/Toshi/Source/TKernel/TDebug.cpp
index 8877f24..af785f7 100644
--- a/Toshi/Source/TKernel/TDebug.cpp
+++ b/Toshi/Source/TKernel/TDebug.cpp
@@ -1,7 +1,7 @@
 #include "TDebug.h"
 #include <stdio.h>
 #include <windows.h>
-#include "TSystem.h"
+#include "TSystemTools.h"
 
 #ifdef TOSHI_NOTFINAL
 
diff --git a/Toshi/Source/TKernel/TFile.cpp b/Toshi/Source/TKernel/TFile.cpp
index cf14276..f7d2716 100644
--- a/Toshi/Source/TKernel/TFile.cpp
+++ b/Toshi/Source/TKernel/TFile.cpp
@@ -18,6 +18,13 @@ void TFile::Destroy(TFile* a_pFile)
 	}
 }
 
+TCString __stdcall TFile::ConcatPath(TCString const& a_rPath1, TCString const& a_rPath2)
+{
+	TCString str = TCString();
+
+	return TCString();
+}
+
 void TFile::Destroy()
 {
 	Destroy(this);
@@ -89,6 +96,11 @@ void TFileManager::UnmountFileSystem(TFileSystem* a_pFileSystem)
 	InvalidateSystemPath();
 }
 
+TCString TFileManager::MakeAbsolutePath(TCString const& a_rPath)
+{
+	return TFile::ConcatPath(a_rPath, GetWorkingDirectory());
+}
+
 TFileSystem* __stdcall TFileManager::FindFileSystem(TDList<TFileSystem>& a_rFileSystems, const TCString& a_rFileSysName)
 {
 	for (auto pNode = a_rFileSystems.Begin(); pNode != a_rFileSystems.End(); pNode++) {
diff --git a/Toshi/Source/TKernel/TObject.cpp b/Toshi/Source/TKernel/TObject.cpp
index 8152d5f..cdb3f13 100644
--- a/Toshi/Source/TKernel/TObject.cpp
+++ b/Toshi/Source/TKernel/TObject.cpp
@@ -1,5 +1,5 @@
 #include "TObject.h"
-#include "TSystem.h"
+#include "TSystemTools.h"
 
 TOSHI_NAMESPACE_USING
 
diff --git a/Toshi/Source/TKernel/TSystem.cpp b/Toshi/Source/TKernel/TSystemTools.cpp
similarity index 62%
rename from Toshi/Source/TKernel/TSystem.cpp
rename to Toshi/Source/TKernel/TSystemTools.cpp
index 39738d8..7dd81e9 100644
--- a/Toshi/Source/TKernel/TSystem.cpp
+++ b/Toshi/Source/TKernel/TSystemTools.cpp
@@ -1,4 +1,4 @@
-#include "TSystem.h"
+#include "TSystemTools.h"
 #include "TDebug.h"
 #include <string.h>
 
@@ -18,6 +18,19 @@ TINT __stdcall TSystem::StringCompareNoCase(TPCCHAR a_String1, TPCCHAR a_String2
 	return a_uiSize != -1 ? _strnicmp(a_String1, a_String2, a_uiSize) : _stricmp(a_String1, a_String2);
 }
 
+TCHAR const* __stdcall TSystem::StringCopy(TPCHAR a_DestinationString, TCHAR const* a_SourceString, TINT a_iCount)
+{
+	TASSERT((a_DestinationString!=TNULL) && (a_SourceString!=TNULL));
+	if (a_iCount != -1) {
+		return strncpy(a_DestinationString, a_SourceString, a_iCount);
+	}
+	TPCHAR d = a_DestinationString;
+	TCHAR const* s = a_SourceString;
+	while (*s != '\0')
+		*d++ = *s++;
+	return a_DestinationString;
+}
+
 TPVOID __stdcall TSystem::MemCopy(TPVOID a_dest, TPCVOID a_src, TUINT a_iSize)
 {
 	// Note: Idk if they used gcclib's memcpy() or their own
diff --git a/Toshi/Source/TKernel/Win/TNativeFileWin.cpp b/Toshi/Source/TKernel/Win/TNativeFileWin.cpp
index 0b769bf..b44de96 100644
--- a/Toshi/Source/TKernel/Win/TNativeFileWin.cpp
+++ b/Toshi/Source/TKernel/Win/TNativeFileWin.cpp
@@ -37,8 +37,21 @@ TBOOL TNativeFileSystem::RemoveFile(TCString const& a_rFilename)
     return DeleteFile(a_rFilename.GetString());
 }
 
-TCString TNativeFileSystem::MakeInternalPath(const TCString& a_rsPath)
+TCString TNativeFileSystem::MakeInternalPath(TCString const& a_rsPath)
 {
+    TCString prefix = GetPrefix();
+    if (prefix.Length() > 0) {
+        if (prefix[prefix.Length() - 1] == '/' || prefix[prefix.Length() - 1] == '\\') {
+            prefix.Truncate(prefix.Length() - 1);
+        }
+    }
+    TFileManager *pFileManager = TFileManager::GetFileManager();
+    TVALIDADDRESS(pFileManager);
+    {
+        TCString empty;
+        pFileManager->MakeAbsolutePath(empty);
+        prefix += empty;
+    }
     return TCString();
 }