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Volume 10, Number 2 - Fall 2000
 

Long File Names Come To Microsoft 32 BIT Versions
 

For a long time Unibase by DMAC has supported 31 character long file names with each directory or file name having up to fifteen characters on UNIX and LINUX systems. On Microsoft 16 bit operating systems the 31 character long file names supported only the standard eight character directory or filename.

When DMAC allowed users to migrate to the 32 bit versions of Unibase by DMAC, the eight character directory or filename format was retained so that a mixture of 16 bit and 32 bit Microsoft clients could access the same Unibase environment. Now that the 16 bit environment is becoming less and less popular, DMAC has opened up the Microsoft 32 bit versions to allow 15 character long file or directory names in the total 31 character long file name. This provides compatibility between UNIX, LINUX and Microsoft versions. Users can move files and more importantly, programs, record formats, etc. using long names between these operating systems now.

When the environment variable UBLNAM is set, long names are allowed and no 16 bit clients are allowed. Progress?

 

This helps the automated conversion of the older systems from UNIX, and LINUX to Microsoft. Using Microsoft operating systems, Unibase provides the ability to run in a client / server environment. Thus the individual computer power of each client is used. Some competitors have moved to Windows servers by emulating UNIX on the Windows Servers. DMAC tried this approach over five years ago. No user liked it; so DMAC discontinued it.