TECHNICAL SUPPORT BULLETIN Number: TSB-061-C Date: 93-07-27 Ref: DS DOS Releases NOTE: All DOS is downward compatible, however we recommend that you use DOS 3.3 R3C92US, DOS 4.01 R4A22US or DOS 5.0 R5B52XX (or above) for the T1600 modem only. DOS Maximum Partition Size ================================= DOS 3.3 32 MB DOS 4.01 2 GB DOS 5.0 2 GB DOS 3.3 ======= DOS 3.3 R3C00US - May 16, 1988 (T1000, T1100+, T1200, T3100/20, T3200, T5100) DOS 3.3 R3C20US - Sept 16, 1988 (T1600/20, T3100e, T5200) DOS 3.3 R3C40US - Feb 15, 1988 (T8500) DOS 3.3 R3C60US - April 15, 1989 (T1600/40) DOS 3.3 R3C61FR - T1600 French DOS DOS 3.3 R3CA6FR - French DOS DOS 3.3 R3C92US - Nov 7, 1989 (recommended T1600 DOS) DOS 3.3 R3CA0US - Jan 18, 1990 (T1000SE, T1000SX, T1200SX, T3100SX, T3200SX) DOS 3.3 R3CA6US - Mar 22, 1990 (T1200XE) DOS 3.3 R3C8SUS - T1000SE on ROM DOS 3.3 R3C9SUS - T1000SE on ROM DOS 3.3 R3C8TUS - T1000XE on ROM DOS 3.3 R3CC0US - May 30 , 1990 (T1000SE, T1000XE, T1200XE,T3100SX deskstations, T5200/200, T3200SX/120) DOS 3.3 R3CC0FR - French DOS DOS 3.3 R3CD0US - Sept 5, 1990 (enhanced EMM.SYS, VDISK,FDISK, SETUP1, TEST1, TEST3, selected TEST8 files) DOS 3.3 R3CE0US - Jan 8, 1991 (T2000SX, T3200SXC, T1200XE/40, VCHAD supported on T2000SX, T3200SXC, new TEST3.EXE for T2000SX and T3200SXC, enhanced ANSI.SYS, CHAD.COM, DISPLAY.SYS, EMM.SYS for T1000LE, TEST8.BAT) DOS 3.3 R3CE0FR - French DOS DOS 3.3 R3CF0US - April 15, 1991 (TEST3 to support T2000, T2000SXe) DOS 3.3 R3CF0FR - French DOS DOS 3.3 R3CG0US - July 10, 1991 (TEST3 to support T2200SX, minor change to TEST1, VCHAD modified to support 43 and 60 line mode such as MS Works 2.0, XCHAD supports 43 line mode) DOS 3.3 R3CG0FR - French DOS DOS 3.3 R3CH0US - Supports T3300SL, T4400SX/C, T6400 (Changes to EMM.SYS, VCHAD, and TEST3 to support the above systems) DOS 4.01 ======== DOS 4.01 R4A15US - August 18, 1989 (T1000, T1100+, T1200, T3100/20, T3200, T1600, T3100e, T5100, T5200, T8500) DOS 4.01 R4A20FR - French DOS DOS 4.01 R4A22US - Nov 7, 1989 (recommended T1600 DOS) DOS 4.01 R4A22FR - French DOS (recommended T1600 French DOS) DOS 4.01 R4A30US - Jan 18, 1990 (T1000SE, T1000XE, T1200XE, T3100SX, T3200SX) DOS 4.01 R4A36US - Mar 22, 1990 (T1200XE) DOS 4.01 R4A36FR - French DOS DOS 4.01 R4A40US - May 30, 1990 (T1000SE, T1000XE, T1200XE , T3100SX deskstations, T5200/200, 3200SX/120, new IFSFUNC.EXE for IBM PCLAN, fixes T3100SX Pop-up menu memory conflicts) DOS 4.01 R4A40FR - French DOS DOS 4.01 R4A50US - Sept 5, 1990 (enhanced FDISK, VDISK, EMM.SYS, SMARTDRV.SYS, IBMBIO, SETUP1, TEST1, TEST3, selected TEST8 files, corrects date/time/resume problem on T1000XE, T1200XE, T1200, T1600, T3100SX) DOS 4.01 R4A60US - Jan 8, 1991 (T2000SX, T3200SXC, T1200XE/40, VCHAD supported on T2000SX, TEST3.EXE for T2000SX and T3200SXC, enhanced CHAD.COM, DISPLAY.SYS, EMM.SYS, (for T1000LE), FASTOPEN.EXE, IBMBIO, IBMDOS, MODE.COM, TEST8.BAT) DOS 4.01 R4A60FR - French DOS DOS 4.01 R4A70US - April 15, 1991 (TEST3 to support T2000, T2000SXe) DOS 4.01 R4A70FR - French DOS DOS 4.01 R4A80US - July 10, 1991 (TEST3 to support T2200SX, fixed EMM386.sys to correct intermittent system hanging, VCHAD modified to support 43 and 60 line mode such as MS Works 2.0, XCHAD supports 43 line mode, FORMAT.SYS modified to create a bootable diskette in PC Tools Version 6.0 and MS Windows 3.0) DOS 4.01 R4A80FR - French DOS DOS 5.0 ======= DOS 5.0 R5A00US - Sept 13, 1991 (Supports T1000, T1100+, T1000SE, T1000XE, T1000LE, T1200, T1200XE, T1600, T2000, T2000SX, T2000SXe, T2200SX, T3100, T3100e, T3100SX, T3200, T3200SX, T3200SXC, T5100, T5200, T5200C, T8500) DOS 5.0 R5A01US - Dec, 1991 (Corrects the problem of installing DOS on the T1600 using standard color CGA, the system will display 80x13 mode. One can now execute FDISK when Hard RAM is installed.) DOS 5.0 R5A10US - Nov 15, 1991 (Supports T4400SX, DOS applications run properly under MS Windows 3.0). DOS 5.0 R5A20US - Dec 12, 1991 (Supports T3300SL,T4400SXC, T6400DX/C, contains Virtual and Windows 3.0 resume drivers for battery operated 386 and above systems). DOS 5.0 R5A20FR - French DOS (Menu driven installation gives a QWERTY keyboard, during installation set clavier=Canadien Francais, set Pays=Canada Francophone and the system will be configured for code page 863). DOS 5.0 R5A21US - Mar 16, 1992 (Corrects an EMM.SYS problem with Lotus 2.3 when deleting, inserting, moving rows and columns). DOS 5.0 R5A21FR - French DOS DOS 5.0 R5B30US - Mar 24, 1992 (Changed WRESUME to support empty fdd, made WRESUME driver silent. Changed CHAD, XCHAD, VCHAD - multiple sessions. Changed ACCESS. Corrected T5100 with ext keyboard and XCHAD Pop-up. Modified HIMEM.SYS with MS 5.0b fixes. Corrects system clock freezing under Windows 386 mode on T3300SL in resume. Modified VRESUME. Added MS DOS 5.0b changes). DOS 5.0 R5B50US - July 2, 1992 (Supports the T1800, T1850, T1850C. Modified EMM386.EXE to support Windows 3.1 in 286 (standard mode). Advanced power management support (APM.SYS) DOS 5.0 R5B50FR - July 8, 1992 French DOS DOS 5.0 R5B52UD - Aug 4, 1992 (Supports the T1800, T1850, T1850C. Special release of DOS to include ULTRA.COM, a screen stretch utility to eliminate borders at top and bottom of screen in text applications. APM support) DOS 5.0 R5B60US - Nov 12, 1992 (3 HD diskettes, installs in either non-color or color, supports T4500, T4500C, APM, PWSETUP, TDIAGS, TSETUP, VCHAD /I option. Changes to EMM386, WRESUME, VRESUME) DOS 5.0 R5B60FR - Nov 12, 1992 French DOS (3 HD diskettes, Supports T4500, T4500C) DOS 5.0 R5B60UD - Nov 12, 1992 (3 HD diskettes, same release as R5B60US but the UD (US Domestic) release includes ULTRA.COM screen stretch utility, supports T4500, T4500C and APM) DOS 5.0 R5B61US, UD, FR - Dec 11, 1992 DOS 5.0 R5B62US, UD, FR - Dec 23, 1992 DOS 5.0 R5B70US, UD, FR - Dec 23, 1992 (Supports T100X) DOS 5.0 R5B80US - May 20, 1993 (Supports T1900 and T4600) Modified APM.SYS, PWSETUP.EXE, TDIAGS.EXE, WRESUME supported on T1900, removed INT 3 from HIMEM.SYS, VCHAD modified to support T1900 and 50-line text mode. VRESUME.SYS no longer supports pop-up window. VRESUME.SYS modified to correct a QEMM installation problem and 386MAX NOHIGH/NOLOADHI/AUTO. Removed VRESUME.COM file. MaxTime support for T100X, T1900, T4500 and T4600. EMM386.EXE does not exclude proper upper memory page on T4600 with active HardRAM. DOS 5.0 R5B80UD - May 20, 1993 (Same release as R5B80US but includes ULTRA.COM a screen stretch utility. This is a US Domestic release of DOS). DOS 5.0 R5B80FR - May 20,1993 French DOS supports T1900 and T4600. DOS 5.0 R5B90US - June 14, 1993 (Supports T6600C) Modified EMM386.EXE, WRESUME.386 for T4500 and PCMCIA driver under development. Modified BIOSVER.EXE, no longer displays the Video BIOS information. Modified SETUP.EXE, README.TXT, ACCESS.MSG, and PWSETUP.EXE to support the T6600C DOS 5.0 R5B90UD - June 14, 1993 (Same release as R5B90US but includes ULTRA.COM screen stretch utility. This is a US Domestic release of DOS). DOS 5.0 R5B90FR - June 14, 1993 French DOS supports T6600C. DISCLAIMER Trademarks are registered to their respective companies. Toshiba Canada Ltd. has done its best to ensure the accuracy of this information. Despite every effort to the contrary, errors, omissions, or discrepancies may have occurred in preparation of this document, and Toshiba Canada Ltd. assumes no liability for damages incurred due in part or in whole to such errors.