Dec 052017
 
Source from PC Mag Vol 7.18.
File VOL7N18.ZIP from The Programmer’s Corner in
Category Files from Magazines
Source from PC Mag Vol 7.18.
File Name File Size Zip Size Zip Type
ASC2PS.ZIP 6682 6280 deflated
ASC2PSD.ZIP 1245 1167 deflated
ASC2PSO.ZIP 1614 1444 deflated
CTRLCAP.ASM 3483 1055 deflated
CTRLCAP.BAS 1648 750 deflated
CTRLCAP.COM 152 151 deflated
CTRLCAP.SCR 374 188 deflated
DOSFUNC.ASM 2048 625 deflated
MULTCOPY.COM 6315 3829 deflated
MULTCOPY.SCR 463 239 deflated
PCNET.BAT 2156 610 deflated
PP718.ZIP 7005 6854 deflated
SHFTPICK.COM 10 10 stored
SHFTPICK.SCR 89 78 deflated
XPANBOSS.ASM 5889 1740 deflated
XPANBOSS.BAS 5328 1707 deflated
XPANBOSS.COM 886 630 deflated
XPANDISK.ASM 38309 8108 deflated
XPANDISK.BAS 10335 3170 deflated
XPANDISK.DOC 2121 1078 deflated
XPANDISK.SYS 1876 1447 deflated

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Contents of the XPANDISK.DOC file


XPANDISK.SYS and XPANBOSS
Device Driver and Command

Michael J. Mefford
1988 No. 18 (Utilities)


Purpose:Permits varying the amount of expanded memory allocated to a RAM
disk without rebooting, when used on systems equipped with memory that conforms
to the Lotus/Intel/Microsoft specification.

Format:In CONFIG.SYS file:
DEVICE=XPANDISK.SYS [/Dn][/Sn][/En][/Mn][/An]

At DOS command prompt:
XPANBOSS [d:][/Dn][/Sn][/En][/Wn][/Rn][/Mn][/An]

Remarks:XPANDISK makes use of an Expanded Memory Manager. The
DEVICE=XPANDISK.SYS entry must, therefore, follow the DEVICE=EMM.SYS (driver
name will differ with manufacturer) line already in the CONFIG.SYS file.
XPANBOSS varies the parameters of the RAMdisk d: created by XPANDISK. Note that
while this does not require rebooting, changing parameters other than /R (Read-Only) does reformat d:, whose contents are thereby lost. A confirmation warning
is given to allow saving the RAMdisk files before the reformatting. The
optional switch parameters for XPANDISK.SYS and XPANBOSS.COM are as follows:

/DnDisk size, variable from 16K to 32,768K; default 64K.
/SnSector size, 128, 256, or 512 bytes; default 265 bytes.
/EnNumber of RAMdisk root directory entries; default 64.
/MnMinimizes RAMdisk size (to 16K); use when running
large spreadsheets or databases.
/AnExpands RAMdisk to fill all extended memory.
/WnEliminates warning that changing RAMdisk
parameters loses contents; use in batch file operation.
/RnMake RAMdisk read-only; use after loading possible
Trojan horse programs. RAMdisk d: may be returned
to read-write by entering d:XPANBOSS.

Note: DOS assigns the next available drive letter as d:. Be sure that
this does not cause a conflict if you are using a SUBST drive.

Note: XPANDISK and XPANBOSS allow the same parameter comments permitted
by the VDISK.SYS extended/conventional device driver. Thus, for example, you
could enter

DEVICE=XPANDISK.SYS /disk size=120K /sector=128

and DOS would understand this as

DEVICE=XPANDISK.SYS /D120/S128


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