diff --git a/source/CMakeLists.txt b/source/CMakeLists.txt
index 32076372..5078ad27 100644
--- a/source/CMakeLists.txt
+++ b/source/CMakeLists.txt
@@ -35,6 +35,7 @@ add_library(appleii SHARED
   linux/windows/stringcb.cpp
   linux/windows/strings.cpp
   linux/windows/misc.cpp
+  linux/windows/winbase.cpp
 
   linux/data.cpp
   linux/dummies.cpp
diff --git a/source/frontends/qapple/qapple.qrc b/source/frontends/qapple/qapple.qrc
index 41662278..3bee32e9 100644
--- a/source/frontends/qapple/qapple.qrc
+++ b/source/frontends/qapple/qapple.qrc
@@ -9,6 +9,7 @@
         <file alias="resources/CHARSET8C.BMP">resources/CHARSET8C.bmp</file>
         <file alias="resources/APPLEWINLOGO.BMP">resources/ApplewinLogo.bmp</file>
         <file>resources/DISK2.rom</file>
+        <file>resources/DISK2-13sector.rom</file>
         <file>resources/Hddrvr.bin</file>
         <file>resources/Parallel.rom</file>
         <file>resources/MouseInterface.rom</file>
diff --git a/source/frontends/qapple/resources/DISK2-13sector.rom b/source/frontends/qapple/resources/DISK2-13sector.rom
new file mode 100644
index 00000000..3588f88e
Binary files /dev/null and b/source/frontends/qapple/resources/DISK2-13sector.rom differ
diff --git a/source/linux/duplicates/Applewin.cpp b/source/linux/duplicates/Applewin.cpp
index 5e2d564b..d5d1acbf 100644
--- a/source/linux/duplicates/Applewin.cpp
+++ b/source/linux/duplicates/Applewin.cpp
@@ -4,6 +4,9 @@
 #include "Common.h"
 #include "CPU.h"
 
+static const UINT VERSIONSTRING_SIZE = 16;
+TCHAR VERSIONSTRING[VERSIONSTRING_SIZE] = "xx.yy.zz.ww";
+
 static bool bLogKeyReadDone = false;
 static DWORD dwLogKeyReadTickStart;
 
diff --git a/source/linux/win.h b/source/linux/win.h
index 47776fd8..52c5be47 100644
--- a/source/linux/win.h
+++ b/source/linux/win.h
@@ -12,3 +12,4 @@
 #include "linux/windows/stringcb.h"
 #include "linux/windows/strings.h"
 #include "linux/windows/gdi.h"
+#include "linux/windows/winbase.h"
diff --git a/source/linux/windows/files.cpp b/source/linux/windows/files.cpp
index 27e35a1a..edd69154 100644
--- a/source/linux/windows/files.cpp
+++ b/source/linux/windows/files.cpp
@@ -26,8 +26,15 @@ DWORD SetFilePointer(HANDLE hFile, LONG lDistanceToMove,
 {
   const FILE_HANDLE & file_handle = dynamic_cast<FILE_HANDLE &>(*hFile);
 
-  fseek(file_handle.f, lDistanceToMove, dwMoveMethod);
-  return ftell(file_handle.f);
+  const int res = fseek(file_handle.f, lDistanceToMove, dwMoveMethod);
+  if (res)
+  {
+    return INVALID_SET_FILE_POINTER;
+  }
+  else
+  {
+    return ftell(file_handle.f);
+  }
 }
 
 BOOL ReadFile(HANDLE hFile, LPVOID lpBuffer, DWORD nNumberOfBytesToRead,
diff --git a/source/linux/windows/files.h b/source/linux/windows/files.h
index 08fde108..58d6911c 100644
--- a/source/linux/windows/files.h
+++ b/source/linux/windows/files.h
@@ -4,6 +4,7 @@
 #include "linux/windows/handles.h"
 
 #define INVALID_FILE_ATTRIBUTES  (~0u)
+#define INVALID_SET_FILE_POINTER (~0u)
 
 typedef struct tagOFN {
   DWORD         lStructSize;
diff --git a/source/linux/windows/resources.cpp b/source/linux/windows/resources.cpp
index 5007c0ab..f0f7b43e 100644
--- a/source/linux/windows/resources.cpp
+++ b/source/linux/windows/resources.cpp
@@ -5,7 +5,7 @@
 // forward declared
 HRSRC FindResource(void *, const std::string & filename, const char *);
 
-std::string MAKEINTRESOURCE(int x)
+const char * MAKEINTRESOURCE(int x)
 {
   switch (x)
   {
@@ -18,7 +18,8 @@ std::string MAKEINTRESOURCE(int x)
   case IDR_PRAVETS_8M_ROM: return "PRAVETS8M.ROM";
   case IDR_TK3000_2E_ROM: return "TK3000e.rom";
 
-  case IDR_DISK2_FW: return "DISK2.rom";
+  case IDR_DISK2_16SECTOR_FW: return "DISK2.rom";
+  case IDR_DISK2_13SECTOR_FW: return "DISK2-13sector.rom";
   case IDR_SSC_FW: return "SSC.rom";
   case IDR_HDDRVR_FW: return "Hddrvr.bin";
   case IDR_PRINTDRVR_FW: return "Parallel.rom";
@@ -29,7 +30,7 @@ std::string MAKEINTRESOURCE(int x)
   }
 
   LogFileOutput("Unknown resource %d\n", x);
-  return std::string();
+  return nullptr;
 }
 
 DWORD SizeofResource(void *, const HRSRC & res)
diff --git a/source/linux/windows/resources.h b/source/linux/windows/resources.h
index b8a9113b..9d37c5fc 100644
--- a/source/linux/windows/resources.h
+++ b/source/linux/windows/resources.h
@@ -18,7 +18,7 @@ struct HRSRC : public CHANDLE
   }
 };
 
-std::string MAKEINTRESOURCE(int x);
+const char * MAKEINTRESOURCE(int x);
 HRSRC FindResource(void *, const std::string & filename, const char *);
 DWORD SizeofResource(void *, const HRSRC &);
 HGLOBAL LoadResource(void *, HRSRC &);
diff --git a/source/linux/windows/winbase.cpp b/source/linux/windows/winbase.cpp
new file mode 100644
index 00000000..eac0863b
--- /dev/null
+++ b/source/linux/windows/winbase.cpp
@@ -0,0 +1,8 @@
+#include "linux/windows/winbase.h"
+
+#include <errno.h>
+
+DWORD       WINAPI GetLastError(void)
+{
+  return errno;
+}
diff --git a/source/linux/windows/winbase.h b/source/linux/windows/winbase.h
new file mode 100644
index 00000000..9f21526d
--- /dev/null
+++ b/source/linux/windows/winbase.h
@@ -0,0 +1,5 @@
+#pragma once
+
+#include "linux/windows/wincompat.h"
+
+DWORD       WINAPI GetLastError(void);