diff --git a/src/dos/dos_programs.cpp b/src/dos/dos_programs.cpp
index 621b9bfc..feba30e3 100644
--- a/src/dos/dos_programs.cpp
+++ b/src/dos/dos_programs.cpp
@@ -1005,6 +1005,61 @@ static void LOADROM_ProgramStart(Program * * make) {
 	*make=new LOADROM;
 }
 
+class BIOS : public Program {
+public:
+	void Run(void) {
+		if (!(cmd->FindCommand(1, temp_line))) {
+			WriteOut("Must specify BIOS file to load.\n");
+			return;
+		}
+
+		Bit8u drive;
+		char fullname[DOS_PATHLENGTH];
+		localDrive* ldp = 0;
+		if (!DOS_MakeName((char *)temp_line.c_str(), fullname, &drive)) return;
+
+		try {
+			/* try to read ROM file into buffer */
+			ldp = dynamic_cast<localDrive*>(Drives[drive]);
+			if (!ldp) return;
+
+			FILE *tmpfile = ldp->GetSystemFilePtr(fullname, "rb");
+			if (tmpfile == NULL) {
+				WriteOut("Can't open a file");
+				return;
+			}
+			fseek(tmpfile, 0L, SEEK_END);
+			if (ftell(tmpfile) > 64 * 1024) {
+				WriteOut("BIOS File too large");
+				fclose(tmpfile);
+				return;
+			}
+			fseek(tmpfile, 0L, SEEK_SET);
+			Bit8u buffer[64*1024];
+			Bitu data_read = fread(buffer, 1, sizeof( buffer), tmpfile);
+			fclose(tmpfile);
+
+			Bit32u rom_base = PhysMake(0xf000, 0); // override regular dosbox bios
+			/* write buffer into ROM */
+			for (Bitu i = 0; i < data_read; i++) phys_writeb(rom_base + i, buffer[i]);
+
+			//Start executing this bios
+			memset(&cpu_regs, 0, sizeof(cpu_regs));
+			memset(&Segs, 0, sizeof(Segs));
+
+			
+			SegSet16(cs, 0xf000);
+			reg_eip = 0xfff0;
+		}
+		catch (...) {
+			return;
+		}
+	}
+};
+
+static void BIOS_ProgramStart(Program * * make) {
+	*make = new BIOS;
+}
 
 // LOADFIX
 
@@ -1767,7 +1822,9 @@ void DOS_SetupPrograms(void) {
 	PROGRAMS_MakeFile("RESCAN.COM",RESCAN_ProgramStart);
 	PROGRAMS_MakeFile("INTRO.COM",INTRO_ProgramStart);
 	PROGRAMS_MakeFile("BOOT.COM",BOOT_ProgramStart);
+	PROGRAMS_MakeFile("BIOS.COM", BIOS_ProgramStart);
 	PROGRAMS_MakeFile("LOADROM.COM", LOADROM_ProgramStart);
 	PROGRAMS_MakeFile("IMGMOUNT.COM", IMGMOUNT_ProgramStart);
 	PROGRAMS_MakeFile("KEYB.COM", KEYB_ProgramStart);
+
 }