diff --git a/msdos/int2f.c b/msdos/int2f.c
index 4d6186ab6fc..43e74177656 100644
--- a/msdos/int2f.c
+++ b/msdos/int2f.c
@@ -94,6 +94,11 @@ void WINAPI INT_Int2fHandler( CONTEXT *context )
     case 0x16:
         do_int2f_16( context );
         break;
+
+    case 0x1a: /* ANSI.SYS / AVATAR.SYS Install Check */
+        /* Not supported yet, do nothing */
+        break;
+
     case 0x43:
 #if 1
 	switch (AL_reg(context))
@@ -247,6 +252,11 @@ static void do_int2f_16( CONTEXT *context )
         CX_reg(context) = (GetWinFlags() & WF_ENHANCED) ? 3 : 2;
         break;
 
+    case 0x11:  /* Get Shell Parameters - (SHELL= in CONFIG.SYS) */
+        /* We can mock this up. But not today... */ 
+        FIXME(int, "Get Shell Parameters\n");       
+        break;
+
     case 0x80:  /* Release time-slice */
 	AL_reg(context) = 0;
 	/* FIXME: We need to do something that lets some other process run