I ran some timing tests copying 4.4MB of files from my HP Flash Card to the PC hard disk using LapLink 3.0a, ZIP.COM, 100LX Connectivity Pack REDIRECTOR and FILER, and INTERLINK from DOS 6.0.
All tests were conducted at 115,200 baud, except where noted. The REDIRECTOR would not run beyond 38,400 bps without FS .COM. I found no errors in the transferred files. The higher KB/sec numbers indicate that the file transfer is faster:
Description . . . . . Speed KB/sec
LapLink 3.0a
From HP SysMan; Turbo Mode . . . . . 13.1
From DOS; Turbo Mode . . . . . 13.1
Device driver from DOS; Xcopy/S . . . . . 10.4
Device driver from DOS; Copy/V/S . . . . . 9.3
ZIP.COM . . . . . 8.1
CPACK 100
Filer (Tag All files & dirs) . . . . . 2.9
Redirector (19,200 bps) . . . . . 1.2
Redirector (38,400 bps) . . . . . 1.9
Redirector w/FS.COM (57,600 bps) . . . . . 2.4
DOS 6 INTERLNK/INTERSVR
Xcopy/S . . . . . 7.2
Copy/V . . . . . 7.4
It is obvious that CPACK transfers are in a different league -- the slowest. LapLink was the fastest at file transfer. ZIP was the fastest non-LapLink alternative, three times faster than CPACK.
LapLink 3.0 has an installable device driver which functions just like the CPACK redirector or DOS 6.0 INTERLNK/INTERSVR. It allows you to map the drives of one machine onto the other. You can then run any other DOS command or program to access the mapped drives. LapLink 3.0 has been around since 1989.
Ron Crain
CompuServe ID: [70011,307]