is the only Japanese version of MS-DOS released by Microsoft under its own brand for retail sales. Microsoft Japan continued selling it after Microsoft released MS-DOS 6.22 to resolve patent infringement of DoubleSpace disk compression. IBM Japan ended support for PC DOS 2000 on 31 January 2001, and Microsoft Japan ended support for MS-DOS on 31 December 2001. Japanese versions of Windows 2000 and XP have a DOS/V environment in NTVDM. It was removed in Windows Vista. PC DOS versions PC DOS versions of DOS/V (J for Japanese, P for Chinese (PRC), T for Taiwanese, H for Korean (Hangul)): IBM DOS J4.0/V "5605-PNA" (version 4.00 – 4.04 were not released for DOS/V) IBM DOS J4.05/V for PS/55 (announced 1990-10-11, shipped 1990-11-05) IBM DOS J4.06/V (1991-04) IBM DOS J4.07/V (1991-07) IBM DOS J5.0/V "5605-PJA" (1991-10), IBM DOS T5.0/V, IBM DOS H5.0/V IBM DOS J5.02/V for PS/55 (1992-03) IBM DOS J5.02A/V IBM DOS J5.02B/V IBM DOS J5.02C/V IBM DOS J5.02D/V (1993-05) Sony OADG DOS/V (includes IBM DOS J5.0/V and drivers for AX machines) PC DOS J6.1/V "5605-PTA" (1993-12), PC DOS P6.1/V, PC DOS T6.10/V PC DOS J6.10A/V (1994-03) PC DOS J6.3/V "5605-PDA" (1994-05) PC DOS J6.30A/V PC DOS J6.30B/V PC DOS J6.30C/V (1995-06) PC DOS J7.0/V "5605-PPW" (1995-08), PC DOS P7/V, PC DOS T7/V, PC DOS H7/V PC DOS J7.00A/V PC DOS J7.00B/V PC DOS J7.00C/V (1998-07) PC DOS 2000 Japanese Edition "04L5610" (1998-07) MS-DOS versions MS-DOS versions of DOS/V: Toshiba Nichi-Ei (日英; Japanese-English) MS-DOS 5.0 Compaq MS-DOS 5.0J/V (1992-04) MS-DOS 5.0/V (OEM, generic MS-DOS 5.0/V) MS-DOS 6.0/V MS-DOS 6.2/V (Retail, 1993-12) MS-DOS 6.22/V (1994-08) Fujitsu Towns OS for FM Towns (only late issues had DOS/V compatibility added) DR DOS versions DR DOS versions of DOS/V: DR DOS 6.0/V (Japanese) (1992-07), DR DOS 6.0/V (Korean) ViewMAX 2 (Japanese) (1991–1992) NetWare Lite 1.1J (Japanese) (1992–1997) Novell DOS 7 (Japanese)? Personal NetWare J 1.0 (Japanese) (1994–1995) (DR-DOS 7.0x/V) (2001–2006) (an attempt to build a DR-DOS/V from existing components) Extensions IBM DOS/V Extension extends DOS/V drivers to set up a variety of text modes for certain video adapters. The High-quality Text Mode is the default 80 columns by 25 rows with 12×24 pixels large characters. The High-density Text Mode (Variable Text; V-Text) offers large text modes with various font sizes. DOS/V Extension V1.0 included drivers for VGA, XGA, PS/55 Display Adapter, SVGA (800×600) and ET4000 (1024×768). Some of its drivers were included in PC DOS