Avoid loading programs into the DOS memory area.

loader/pe_image.c

@@ -395,10 +395,11 @@ static int do_relocations( char *base, const IMAGE_NT_HEADERS *nt, const char *f
     {
         if (nt->OptionalHeader.ImageBase == 0x400000)
             ERR("Standard load address for a Win32 program (0x00400000) not available - security-patched kernel ?\n");
-        ERR( "FATAL: Need to relocate %s, but no relocation records present (%s). Try to run that file directly !\n",
-             filename,
+        else
+            ERR( "FATAL: Need to relocate %s from addr %p, but %s\n",
+                 filename, nt->OptionalHeader.ImageBase,
                  (nt->FileHeader.Characteristics&IMAGE_FILE_RELOCS_STRIPPED)?
-             "stripped during link" : "unknown reason" );
+                 "relocation records are stripped" : "no relocation records present" );
         return 0;
     }
 
@@ -822,4 +823,3 @@ void PE_InitTls( void )
 		TlsSetValue( wm->tlsindex, mem );
 	}
 }
-

memory/virtual.c

@@ -513,6 +513,7 @@ static LPVOID map_image( HANDLE hmapping, int fd, char *base, DWORD total_size,
 
     /* zero-map the whole range */
 
+    if (base < (char *)0x110000) base = 0;  /* make sure the DOS area remains free */
     if ((ptr = wine_anon_mmap( base, total_size,
                              PROT_READ | PROT_WRITE | PROT_EXEC, 0 )) == (char *)-1)
     {