diff --git a/dlls/ntdll/Makefile.in b/dlls/ntdll/Makefile.in
index 2cd26bdef22780805caeb735295c4dbc1b311687..dfd1e81c1da4544f58db3152fce29cd5c17d25d4 100644
--- a/dlls/ntdll/Makefile.in
+++ b/dlls/ntdll/Makefile.in
@@ -53,7 +53,6 @@ C_SRCS = \
 	$(TOPOBJDIR)/msdos/int11.c \
 	$(TOPOBJDIR)/msdos/int13.c \
 	$(TOPOBJDIR)/msdos/int15.c \
-	$(TOPOBJDIR)/msdos/int1a.c \
 	$(TOPOBJDIR)/msdos/int20.c \
 	$(TOPOBJDIR)/msdos/int21.c \
 	$(TOPOBJDIR)/msdos/int25.c \
diff --git a/msdos/dosmem.c b/msdos/dosmem.c
index 7cf86f3b5676de99483d3b24777d3461f7235ee1..f3272838dc8c8f4422ccae421459d6f67e4d646c 100644
--- a/msdos/dosmem.c
+++ b/msdos/dosmem.c
@@ -30,6 +30,11 @@
 # include <sys/mman.h>
 #endif
 
+#include <time.h>
+#ifdef HAVE_SYS_TIME_H
+# include <sys/time.h>
+#endif
+
 #include "winbase.h"
 #include "wine/winbase16.h"
 
@@ -234,6 +239,27 @@ static BIOSDATA * DOSMEM_BiosData(void)
     return (BIOSDATA *)(DOSMEM_sysmem + 0x400);
 }
 
+/**********************************************************************
+ *          DOSMEM_GetTicksSinceMidnight
+ *
+ * Return number of clock ticks since midnight.
+ */
+static DWORD DOSMEM_GetTicksSinceMidnight(void)
+{
+    struct tm *bdtime;
+    struct timeval tvs;
+    time_t seconds;
+
+    /* This should give us the (approximately) correct
+     * 18.206 clock ticks per second since midnight.
+     */
+    gettimeofday( &tvs, NULL );
+    seconds = tvs.tv_sec;
+    bdtime = localtime( &seconds );
+    return (((bdtime->tm_hour * 3600 + bdtime->tm_min * 60 +
+              bdtime->tm_sec) * 18206) / 1000) +
+                  (tvs.tv_usec / 54927);
+}
 
 /***********************************************************************
  *           DOSMEM_FillBiosSegments
@@ -281,7 +307,7 @@ static void DOSMEM_FillBiosSegments(void)
     pBiosData->VideoPageSize        = 80 * 25 * 2;
     pBiosData->VideoPageStartAddr   = 0xb800;
     pBiosData->VideoCtrlAddr        = 0x3d4;
-    pBiosData->Ticks                = INT1A_GetTicksSinceMidnight();
+    pBiosData->Ticks                = DOSMEM_GetTicksSinceMidnight();
     pBiosData->NbHardDisks          = 2;
     pBiosData->KbdBufferStart       = 0x1e;
     pBiosData->KbdBufferEnd         = 0x3e;
diff --git a/msdos/int1a.c b/msdos/int1a.c
deleted file mode 100644
index 735c2ccd577fa326a1dc3eb9086e956a9a8b0a22..0000000000000000000000000000000000000000
--- a/msdos/int1a.c
+++ /dev/null
@@ -1,128 +0,0 @@
-/*
- * BIOS interrupt 1ah handler
- *
- * Copyright 1993 Erik Bos
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
- */
-
-#include "config.h"
-#include "wine/port.h"
-
-#include <time.h>
-#ifdef HAVE_SYS_TIME_H
-# include <sys/time.h>
-#endif
-#include <stdlib.h>
-#include "miscemu.h"
-#include "wine/debug.h"
-
-WINE_DEFAULT_DEBUG_CHANNEL(int);
-
-#define	BCD_TO_BIN(x) ((x&15) + (x>>4)*10)
-#define BIN_TO_BCD(x) ((x%10) + ((x/10)<<4))
-
-
-/**********************************************************************
- *	    INT1A_GetTicksSinceMidnight
- *
- * Return number of clock ticks since midnight.
- */
-DWORD INT1A_GetTicksSinceMidnight(void)
-{
-    struct tm *bdtime;
-    struct timeval tvs;
-    time_t seconds;
-
-    /* This should give us the (approximately) correct
-     * 18.206 clock ticks per second since midnight.
-     */
-    gettimeofday( &tvs, NULL );
-    seconds = tvs.tv_sec;
-    bdtime = localtime( &seconds );
-    return (((bdtime->tm_hour * 3600 + bdtime->tm_min * 60 +
-              bdtime->tm_sec) * 18206) / 1000) +
-                  (tvs.tv_usec / 54927);
-}
-
-
-/**********************************************************************
- *	    INT_Int1aHandler (WPROCS.126)
- *
- * Handler for int 1ah
- *     0x00 - 0x07 - date and time
- *     0x?? - 0x?? - Microsoft Real Time Compression Interface
- */
-void WINAPI INT_Int1aHandler( CONTEXT86 *context )
-{
-    time_t ltime;
-    DWORD ticks;
-    struct tm *bdtime;
-
-    switch(AH_reg(context))
-    {
-	case 0x00:
-            ticks = INT1A_GetTicksSinceMidnight();
-            SET_CX( context, HIWORD(ticks) );
-            SET_DX( context, LOWORD(ticks) );
-            SET_AX( context, 0 );  /* No midnight rollover */
-            TRACE("int1a: AH=00 -- ticks=%ld\n", ticks);
-            break;
-
-	case 0x02:
-		ltime = time(NULL);
-		bdtime = localtime(&ltime);
-
-		SET_CX( context, (BIN_TO_BCD(bdtime->tm_hour)<<8) |
-                                  BIN_TO_BCD(bdtime->tm_min) );
-		SET_DX( context, (BIN_TO_BCD(bdtime->tm_sec)<<8) );
-
-	case 0x04:
-		ltime = time(NULL);
-		bdtime = localtime(&ltime);
-		SET_CX( context, (BIN_TO_BCD(bdtime->tm_year/100)<<8) |
-                                  BIN_TO_BCD((bdtime->tm_year-1900)%100) );
-		SET_DX( context, (BIN_TO_BCD(bdtime->tm_mon)<<8) |
-                                  BIN_TO_BCD(bdtime->tm_mday) );
-		break;
-
-		/* setting the time,date or RTC is not allow -EB */
-	case 0x01:
-		/* set system time */
-	case 0x03:
-		/* set RTC time */
-	case 0x05:
-		/* set RTC date */
-	case 0x06:
-		/* set ALARM */
-	case 0x07:
-		/* cancel ALARM */
-		break;
-
-        case 0xb0: /* Microsoft Real Time Compression */
-                switch AL_reg(context)
-                {
-                    case 0x01:
-                        /* not present */
-                        break;
-                    default:
-                        INT_BARF(context, 0x1a);
-                }
-                break;
-
-	default:
-		INT_BARF( context, 0x1a );
-    }
-}