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Estex DSS 1.6 Release - Release Notes

Overview of New Features in DSS 1.6

The release notes for Estex DSS 1.6-RELEASE contain a summary of the changes made to the Estex DSS base system since 1.55-RELEASE.

What's New

Now we release a new system feature as System Environment. It's the ability to use environment variables in batch files. These variables can be referenced by surrounding the variable with percent symbols (%).
Also it allow to improve program launching. By special %PATH% variable which contain list of directories for search executable files.

Command Processor (SYSTEM.EXE) Enhancements

Added new built-in command PATH. To specify, display the current search path.
Added new built-in command SET. To displays, sets, or removes system environment variables.
Added environment variable substitution %VAR%.
Added command line parameters substitution %1...%9 and %0.
Fixed bug in batch-parser. Sometimes, it could merge two lines in a batch-file.

User's Commands Enhancements

Added new external command ATTRIB. Show/Change file(s) or directory attributes.
Added new external command BOOT. Puts bootstrap record to the disk.
Added new external command CDX. CDROM extension.
Added new external command COPY. Copy a file.
Added new external command FVIEW. View a text file.
Added new external command IF. Exitcode condition.
Added new external command INPUT. Input environment variable.
Added new external command KEYBOARD. Keyboard control.
Added new external command MENU. User menu.
Added new external command RAMDRIVE. Create 720K RAM-drive.

System Kernel Enhancements

Added new DSS function DSS_ENVIRON (46h) with three subfunctions for System Environment.
Added new DSS function DSS_APPINFO (47h) with three subfunctions for getting application related information.
Improved DSS functions DSS_CREATE (0Ah), DSS_CREAT_N (0Bh). Now it masked incorrect attribute values.
Improved DSS function DSS_ATTRIB (16h). Now it allow to change attributes for directory.
Improved DSS function DSS_EXEC (40h) subfunction 0. Now it use PATH variable.
Improved DSS functions DSS_WINCOPY (59h), DSS_WINREST (5Ah).
Improved DSS function DSS_ECHOKEY (32h). Added visualization of blinked cursor.
Fixed bug in DSS function DSS_ATTRIB (16h). With system attribute.
Fixed bug in DSS function DSS_CHDIR (1Dh). Bug with "CD ." in root directory.
Fixed bug in DSS function DSS_EXEC (40h). Incorrect PID with execute failure.
Fixed bug in DSS function DSS_SCROLL (55h). Bug when A=0.
Fixed bug with filename parsing.
Fixed bug in DSS function DSS_PUT_D_T (18h). It's not updated date and time if file hasn't changes between OPEN and CLOSE calls.
And also some other internal changes and improvements.