diff --git a/include/dos_system.h b/include/dos_system.h
index 9222708e..3d31ab94 100644
--- a/include/dos_system.h
+++ b/include/dos_system.h
@@ -217,7 +217,6 @@ private:
 	CFileInfo*	dirBase;
 	char		dirPath				[CROSS_LEN];
 	char		basePath			[CROSS_LEN];
-	bool		dirFirstTime;
 	TDirSort	sortDirType;
 	CFileInfo*	save_dir;
 	char		save_path			[CROSS_LEN];
@@ -225,7 +224,6 @@ private:
 
 	Bit16u		srchNr;
 	CFileInfo*	dirSearch			[MAX_OPENDIRS];
-	char		dirSearchName		[MAX_OPENDIRS];
 	CFileInfo*	dirFindFirst		[MAX_OPENDIRS];
 	Bit16u		nextFreeFindFirst;
 
diff --git a/src/dos/drive_fat.cpp b/src/dos/drive_fat.cpp
index e75b47c1..e5e1f697 100644
--- a/src/dos/drive_fat.cpp
+++ b/src/dos/drive_fat.cpp
@@ -60,7 +60,6 @@ public:
 	bool loadedSector;
 	fatDrive *myDrive;
 private:
-	enum { NONE,READ,WRITE } last_action;
 	Bit16u info;
 };
 
diff --git a/src/dos/drive_iso.cpp b/src/dos/drive_iso.cpp
index 64e95ef3..8de74162 100644
--- a/src/dos/drive_iso.cpp
+++ b/src/dos/drive_iso.cpp
@@ -45,7 +45,6 @@ private:
 	Bit32u fileBegin;
 	Bit32u filePos;
 	Bit32u fileEnd;
-	Bit16u info;
 };
 
 isoFile::isoFile(isoDrive *drive, const char *name, FileStat_Block *stat, Bit32u offset) {