diff --git a/setter/src/win32/CMakeLists.txt b/setter/src/win32/CMakeLists.txt
index 2d0cdc8..9e5300b 100644
--- a/setter/src/win32/CMakeLists.txt
+++ b/setter/src/win32/CMakeLists.txt
@@ -7,7 +7,7 @@ project(
         DESCRIPTION "Filesystem test creator for 32-bit and 64-bit Windows"
         LANGUAGES C)
 
-set(PLATFORM_SOURCES attr.c deleted.c dirdepth.c filename.c files.c frag.c links.c os.c perms.c rsrcfork.c sparse.c time.c volume.c xattr.c attr.h rsrcfork.h xattr.h links.h volume.h time.h)
+set(PLATFORM_SOURCES attr.c deleted.c dirdepth.c filename.c files.c frag.c links.c os.c perms.c rsrcfork.c sparse.c time.c volume.c xattr.c attr.h rsrcfork.h xattr.h links.h volume.h time.h os.h sparse.h)
 
 set(EXECUTABLE_NAME "fssetter-${CMAKE_SYSTEM_NAME}-${CMAKE_SYSTEM_PROCESSOR}")
 
diff --git a/setter/src/win32/attr.h b/setter/src/win32/attr.h
index 7fb62d1..45a969b 100644
--- a/setter/src/win32/attr.h
+++ b/setter/src/win32/attr.h
@@ -7,6 +7,8 @@
 
 #include <windows.h>
 
+#include "win32.h"
+
 const char* compressedAttributeText = "This file is compressed.\n";
 
 typedef struct
@@ -372,4 +374,12 @@ static const win32_attr_tests_t encrypted_win32_attrs[KNOWN_WIN32_ATTRS] = {
 
 BOOL(WINAPI* WinNtEncryptFileA)(LPCSTR);
 
+#ifndef FSCTL_SET_COMPRESSION
+#define FSCTL_SET_COMPRESSION 0x9C040
+#endif
+
+#ifndef COMPRESSION_FORMAT_DEFAULT
+#define COMPRESSION_FORMAT_DEFAULT 1
+#endif
+
 #endif // SETTER_SRC_WIN32_ATTR_H_
diff --git a/setter/src/win32/links.h b/setter/src/win32/links.h
index 82655d4..73a6311 100644
--- a/setter/src/win32/links.h
+++ b/setter/src/win32/links.h
@@ -5,6 +5,8 @@
 #ifndef SETTER_SRC_WIN32_LINKS_H_
 #define SETTER_SRC_WIN32_LINKS_H_
 
+#include "win32.h"
+
 static BOOL(WINAPI* WinNtCreateHardLinkA)(LPCSTR, LPCSTR, LPSECURITY_ATTRIBUTES);
 static BOOL(WINAPI* WinNtCreateSymbolicLinkA)(LPCSTR, LPCSTR, DWORD);
 
diff --git a/setter/src/win32/os.c b/setter/src/win32/os.c
index 6599161..e4dcf36 100644
--- a/setter/src/win32/os.c
+++ b/setter/src/win32/os.c
@@ -40,6 +40,9 @@ Copyright (C) 2011-2021 Natalia Portillo
 #include <string.h>
 
 #include "win32.h"
+
+#include "os.h"
+
 #include "../include/defs.h"
 
 DWORD oldVersion;
diff --git a/setter/src/win32/os.h b/setter/src/win32/os.h
new file mode 100644
index 0000000..28c9585
--- /dev/null
+++ b/setter/src/win32/os.h
@@ -0,0 +1,24 @@
+//
+// Created by claunia on 11/3/21.
+//
+
+#ifndef SETTER_SRC_WIN32_OS_H_
+#define SETTER_SRC_WIN32_OS_H_
+
+#include <windows.h>
+
+#include "win32.h"
+
+#ifndef VER_PLATFORM_WIN32s
+#define VER_PLATFORM_WIN32s 0
+#endif
+
+#ifndef VER_PLATFORM_WIN32_WINDOWS
+#define VER_PLATFORM_WIN32_WINDOWS 1
+#endif
+
+#ifndef VER_PLATFORM_WIN32_NT
+#define VER_PLATFORM_WIN32_NT 2
+#endif
+
+#endif // SETTER_SRC_WIN32_OS_H_
diff --git a/setter/src/win32/sparse.c b/setter/src/win32/sparse.c
index 773ae4f..4a5d77f 100644
--- a/setter/src/win32/sparse.c
+++ b/setter/src/win32/sparse.c
@@ -41,6 +41,9 @@ Copyright (C) 2011-2021 Natalia Portillo
 #include <string.h>
 
 #include "win32.h"
+
+#include "sparse.h"
+
 #include "../include/consts.h"
 #include "../include/defs.h"
 
diff --git a/setter/src/win32/sparse.h b/setter/src/win32/sparse.h
new file mode 100644
index 0000000..5c8294a
--- /dev/null
+++ b/setter/src/win32/sparse.h
@@ -0,0 +1,29 @@
+//
+// Created by claunia on 11/3/21.
+//
+
+#ifndef SETTER_SRC_WIN32_SPARSE_H_
+#define SETTER_SRC_WIN32_SPARSE_H_
+
+#include <windows.h>
+
+#include "win32.h"
+
+#ifndef FSCTL_SET_SPARSE
+#define FSCTL_SET_SPARSE 0x000900C4
+#endif
+
+#ifndef FSCTL_SET_ZERO_DATA
+#define FSCTL_SET_ZERO_DATA 0x000900C8
+#endif
+
+#define FSCTL_SET_SPARSE_OLD 0x000980C4
+#define FSCTL_SET_ZERO_DATA_OLD 0x000980C8
+
+typedef struct _WINNT_FILE_ZERO_DATA_INFORMATION
+{
+    LARGE_INTEGER FileOffset;
+    LARGE_INTEGER BeyondFinalZero;
+} WINNT_FILE_ZERO_DATA_INFORMATION, *PWINNT_FILE_ZERO_DATA_INFORMATION;
+
+#endif // SETTER_SRC_WIN32_SPARSE_H_
diff --git a/setter/src/win32/volume.h b/setter/src/win32/volume.h
index d608b24..930c568 100644
--- a/setter/src/win32/volume.h
+++ b/setter/src/win32/volume.h
@@ -5,6 +5,138 @@
 #ifndef SETTER_SRC_WIN32_VOLUME_H_
 #define SETTER_SRC_WIN32_VOLUME_H_
 
+#include <windows.h>
+
+#include "win32.h"
+
 BOOL(WINAPI* WinGetDiskFreeSpaceExA)(LPCSTR, PULARGE_INTEGER, PULARGE_INTEGER, PULARGE_INTEGER);
 
+#ifndef FILE_CASE_PRESERVED_NAMES
+#define FILE_CASE_PRESERVED_NAMES 0x00000002
+#endif
+
+#ifndef FILE_CASE_SENSITIVE_SEARCH
+#define FILE_CASE_SENSITIVE_SEARCH 0x00000001
+#endif
+
+#ifndef FILE_DAX_VOLUME
+#define FILE_DAX_VOLUME 0x20000000
+#endif
+
+#ifndef FILE_FILE_COMPRESSION
+#define FILE_FILE_COMPRESSION 0x00000010
+#endif
+
+#ifndef FILE_NAMED_STREAMS
+#define FILE_NAMED_STREAMS 0x00040000
+#endif
+
+#ifndef FILE_PERSISTENT_ACLS
+#define FILE_PERSISTENT_ACLS 0x00000008
+#endif
+
+#ifndef FILE_READ_ONLY_VOLUME
+#define FILE_READ_ONLY_VOLUME 0x00080000
+#endif
+
+#ifndef FILE_SEQUENTIAL_WRITE_ONCE
+#define FILE_SEQUENTIAL_WRITE_ONCE 0x00100000
+#endif
+
+#ifndef FILE_SUPPORTS_ENCRYPTION
+#define FILE_SUPPORTS_ENCRYPTION 0x00020000
+#endif
+
+#ifndef FILE_SUPPORTS_EXTENDED_ATTRIBUTES
+#define FILE_SUPPORTS_EXTENDED_ATTRIBUTES 0x00800000
+#endif
+
+#ifndef FILE_SUPPORTS_HARD_LINKS
+#define FILE_SUPPORTS_HARD_LINKS 0x00400000
+#endif
+
+#ifndef FILE_SUPPORTS_OBJECT_IDS
+#define FILE_SUPPORTS_OBJECT_IDS 0x00010000
+#endif
+
+#ifndef FILE_SUPPORTS_OPEN_BY_FILE_ID
+#define FILE_SUPPORTS_OPEN_BY_FILE_ID 0x01000000
+#endif
+
+#ifndef FILE_SUPPORTS_REPARSE_POINTS
+#define FILE_SUPPORTS_REPARSE_POINTS 0x00000080
+#endif
+
+#ifndef FILE_SUPPORTS_SPARSE_FILES
+#define FILE_SUPPORTS_SPARSE_FILES 0x00000040
+#endif
+
+#ifndef FILE_SUPPORTS_TRANSACTIONS
+#define FILE_SUPPORTS_TRANSACTIONS 0x00200000
+#endif
+
+#ifndef FILE_SUPPORTS_USN_JOURNAL
+#define FILE_SUPPORTS_USN_JOURNAL 0x02000000
+#endif
+
+#ifndef FILE_UNICODE_ON_DISK
+#define FILE_UNICODE_ON_DISK 0x00000004
+#endif
+
+#ifndef FILE_VOLUME_IS_COMPRESSED
+#define FILE_VOLUME_IS_COMPRESSED 0x00008000
+#endif
+
+#ifndef FILE_VOLUME_QUOTAS
+#define FILE_VOLUME_QUOTAS 0x00000020
+#endif
+
+#ifndef FILE_ATTRIBUTE_ARCHIVE
+#define FILE_ATTRIBUTE_ARCHIVE 0x00000020
+#endif
+
+#ifndef FILE_ATTRIBUTE_ENCRYPTED
+#define FILE_ATTRIBUTE_ENCRYPTED 0x00004000
+#endif
+
+#ifndef FILE_ATTRIBUTE_HIDDEN
+#define FILE_ATTRIBUTE_HIDDEN 0x00000002
+#endif
+
+#ifndef FILE_ATTRIBUTE_NORMAL
+#define FILE_ATTRIBUTE_NORMAL 0x00000080
+#endif
+
+#ifndef FILE_ATTRIBUTE_OFFLINE
+#define FILE_ATTRIBUTE_OFFLINE 0x00001000
+#endif
+
+#ifndef FILE_ATTRIBUTE_READONLY
+#define FILE_ATTRIBUTE_READONLY 0x00000001
+#endif
+
+#ifndef FILE_ATTRIBUTE_SYSTEM
+#define FILE_ATTRIBUTE_SYSTEM 0x00000004
+#endif
+
+#ifndef FILE_ATTRIBUTE_TEMPORARY
+#define FILE_ATTRIBUTE_TEMPORARY 0x00000100
+#endif
+
+#ifndef FILE_ATTRIBUTE_COMPRESSED
+#define FILE_ATTRIBUTE_COMPRESSED 0x00000800
+#endif
+
+#ifndef FILE_RETURNS_CLEANUP_RESULT_INFO
+#define FILE_RETURNS_CLEANUP_RESULT_INFO 0x00000200
+#endif
+
+#ifndef FILE_SUPPORTS_POSIX_UNLINK_RENAME
+#define FILE_SUPPORTS_POSIX_UNLINK_RENAME 0x00000400
+#endif
+
+#ifndef FS_LFN_APIS
+#define FS_LFN_APIS 0x00004000
+#endif
+
 #endif // SETTER_SRC_WIN32_VOLUME_H_
diff --git a/setter/src/win32/win32.h b/setter/src/win32/win32.h
index 9e08f03..552bb38 100644
--- a/setter/src/win32/win32.h
+++ b/setter/src/win32/win32.h
@@ -35,200 +35,12 @@ Copyright (C) 2011-2021 Natalia Portillo
 
 #include <windows.h>
 
-#ifndef VER_PLATFORM_WIN32s
-#define VER_PLATFORM_WIN32s 0
-#endif
-
-#ifndef VER_PLATFORM_WIN32_WINDOWS
-#define VER_PLATFORM_WIN32_WINDOWS 1
-#endif
-
-#ifndef VER_PLATFORM_WIN32_NT
-#define VER_PLATFORM_WIN32_NT 2
-#endif
-
-#ifndef FILE_CASE_PRESERVED_NAMES
-#define FILE_CASE_PRESERVED_NAMES 0x00000002
-#endif
-
-#ifndef FILE_CASE_SENSITIVE_SEARCH
-#define FILE_CASE_SENSITIVE_SEARCH 0x00000001
-#endif
-
-#ifndef FILE_DAX_VOLUME
-#define FILE_DAX_VOLUME 0x20000000
-#endif
-
-#ifndef FILE_FILE_COMPRESSION
-#define FILE_FILE_COMPRESSION 0x00000010
-#endif
-
-#ifndef FILE_NAMED_STREAMS
-#define FILE_NAMED_STREAMS 0x00040000
-#endif
-
-#ifndef FILE_PERSISTENT_ACLS
-#define FILE_PERSISTENT_ACLS 0x00000008
-#endif
-
-#ifndef FILE_READ_ONLY_VOLUME
-#define FILE_READ_ONLY_VOLUME 0x00080000
-#endif
-
-#ifndef FILE_SEQUENTIAL_WRITE_ONCE
-#define FILE_SEQUENTIAL_WRITE_ONCE 0x00100000
-#endif
-
-#ifndef FILE_SUPPORTS_ENCRYPTION
-#define FILE_SUPPORTS_ENCRYPTION 0x00020000
-#endif
-
-#ifndef FILE_SUPPORTS_EXTENDED_ATTRIBUTES
-#define FILE_SUPPORTS_EXTENDED_ATTRIBUTES 0x00800000
-#endif
-
-#ifndef FILE_SUPPORTS_HARD_LINKS
-#define FILE_SUPPORTS_HARD_LINKS 0x00400000
-#endif
-
-#ifndef FILE_SUPPORTS_OBJECT_IDS
-#define FILE_SUPPORTS_OBJECT_IDS 0x00010000
-#endif
-
-#ifndef FILE_SUPPORTS_OPEN_BY_FILE_ID
-#define FILE_SUPPORTS_OPEN_BY_FILE_ID 0x01000000
-#endif
-
-#ifndef FILE_SUPPORTS_REPARSE_POINTS
-#define FILE_SUPPORTS_REPARSE_POINTS 0x00000080
-#endif
-
-#ifndef FILE_SUPPORTS_SPARSE_FILES
-#define FILE_SUPPORTS_SPARSE_FILES 0x00000040
-#endif
-
-#ifndef FILE_SUPPORTS_TRANSACTIONS
-#define FILE_SUPPORTS_TRANSACTIONS 0x00200000
-#endif
-
-#ifndef FILE_SUPPORTS_USN_JOURNAL
-#define FILE_SUPPORTS_USN_JOURNAL 0x02000000
-#endif
-
-#ifndef FILE_UNICODE_ON_DISK
-#define FILE_UNICODE_ON_DISK 0x00000004
-#endif
-
-#ifndef FILE_VOLUME_IS_COMPRESSED
-#define FILE_VOLUME_IS_COMPRESSED 0x00008000
-#endif
-
-#ifndef FILE_VOLUME_QUOTAS
-#define FILE_VOLUME_QUOTAS 0x00000020
-#endif
-
-#ifndef FILE_ATTRIBUTE_ARCHIVE
-#define FILE_ATTRIBUTE_ARCHIVE 0x00000020
-#endif
-
-#ifndef FILE_ATTRIBUTE_ENCRYPTED
-#define FILE_ATTRIBUTE_ENCRYPTED 0x00004000
-#endif
-
-#ifndef FILE_ATTRIBUTE_HIDDEN
-#define FILE_ATTRIBUTE_HIDDEN 0x00000002
-#endif
-
-#ifndef FILE_ATTRIBUTE_NORMAL
-#define FILE_ATTRIBUTE_NORMAL 0x00000080
-#endif
-
-#ifndef FILE_ATTRIBUTE_OFFLINE
-#define FILE_ATTRIBUTE_OFFLINE 0x00001000
-#endif
-
-#ifndef FILE_ATTRIBUTE_READONLY
-#define FILE_ATTRIBUTE_READONLY 0x00000001
-#endif
-
-#ifndef FILE_ATTRIBUTE_SYSTEM
-#define FILE_ATTRIBUTE_SYSTEM 0x00000004
-#endif
-
-#ifndef FILE_ATTRIBUTE_TEMPORARY
-#define FILE_ATTRIBUTE_TEMPORARY 0x00000100
-#endif
-
-#ifndef FILE_ATTRIBUTE_COMPRESSED
-#define FILE_ATTRIBUTE_COMPRESSED 0x00000800
-#endif
-
-#ifndef FSCTL_SET_COMPRESSION
-#define FSCTL_SET_COMPRESSION 0x9C040
-#endif
-
-#ifndef FILE_RETURNS_CLEANUP_RESULT_INFO
-#define FILE_RETURNS_CLEANUP_RESULT_INFO 0x00000200
-#endif
-
-#ifndef FILE_SUPPORTS_POSIX_UNLINK_RENAME
-#define FILE_SUPPORTS_POSIX_UNLINK_RENAME 0x00000400
-#endif
-
-#ifndef FS_LFN_APIS
-#define FS_LFN_APIS 0x00004000
-#endif
-
-#ifndef COMPRESSION_FORMAT_DEFAULT
-#define COMPRESSION_FORMAT_DEFAULT 1
-#endif
-
-typedef struct _FILE_FULL_EA_INFORMATION
-{
-    ULONG  NextEntryOffset;
-    UCHAR  Flags;
-    UCHAR  EaNameLength;
-    USHORT EaValueLength;
-    CHAR   EaName[1];
-} FILE_FULL_EA_INFORMATION, *PFILE_FULL_EA_INFORMATION;
-
-#ifndef FILE_NEED_EA
-#define FILE_NEED_EA 0x80
-#endif
-
 typedef LONG NTSTATUS;
 
-typedef struct _IO_STATUS_BLOCK
-{
-    union {
-        NTSTATUS Status;
-        PVOID    Pointer;
-    } DUMMYUNIONNAME;
-    PULONG Information;
-} IO_STATUS_BLOCK, *PIO_STATUS_BLOCK;
-
 #ifndef NTAPI
 #define NTAPI __stdcall
 #endif
 
-#ifndef FSCTL_SET_SPARSE
-#define FSCTL_SET_SPARSE 0x000900C4
-#endif
-
-#ifndef FSCTL_SET_ZERO_DATA
-#define FSCTL_SET_ZERO_DATA 0x000900C8
-#endif
-
-#define FSCTL_SET_SPARSE_OLD 0x000980C4
-#define FSCTL_SET_ZERO_DATA_OLD 0x000980C8
-
-typedef struct _WINNT_FILE_ZERO_DATA_INFORMATION
-{
-    LARGE_INTEGER FileOffset;
-    LARGE_INTEGER BeyondFinalZero;
-} WINNT_FILE_ZERO_DATA_INFORMATION, *PWINNT_FILE_ZERO_DATA_INFORMATION;
-
-
 typedef struct _WIN_OSVERSIONINFOA
 {
     DWORD dwOSVersionInfoSize;
diff --git a/setter/src/win32/xattr.h b/setter/src/win32/xattr.h
index 5f1af4b..ccb6b62 100644
--- a/setter/src/win32/xattr.h
+++ b/setter/src/win32/xattr.h
@@ -205,6 +205,25 @@ unsigned char IconEA[3516] = {
     0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
     0x00};
 
+typedef struct _IO_STATUS_BLOCK
+{
+    union
+    {
+        NTSTATUS Status;
+        PVOID    Pointer;
+    } DUMMYUNIONNAME;
+    PULONG Information;
+} IO_STATUS_BLOCK, *PIO_STATUS_BLOCK;
+
+typedef struct _FILE_FULL_EA_INFORMATION
+{
+    ULONG  NextEntryOffset;
+    UCHAR  Flags;
+    UCHAR  EaNameLength;
+    USHORT EaValueLength;
+    CHAR   EaName[1];
+} FILE_FULL_EA_INFORMATION, *PFILE_FULL_EA_INFORMATION;
+
 static NTSTATUS(NTAPI* NtSetEaFile)(HANDLE, PIO_STATUS_BLOCK, PVOID, ULONG);
 static NTSTATUS(NTAPI* NtQueryEaFile)(HANDLE, PIO_STATUS_BLOCK, PVOID, ULONG, BOOLEAN, PVOID, ULONG, PULONG, BOOLEAN);