Hi!
9-Апр-2005 14:05 [EMAIL PROTECTED] (Eric Auer) wrote to
freedos-user@lists.sourceforge.net:
EA> The FDSHIELD COM file is now almost 4 kB big (UPXed size, otherwise it
-----------------^^^
EA> is almost 6 kB big) and the shield takes about 4 kB RAM while resident
EA> (you can load it to UMBs if you want, it will need 6-7 kB of UMB space
-------------^^^^^^^^^^^^^^^-----------------^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
EA> to initialize and load successfully). You definitely get more security
I imperatively recommend to convert .COM file of (any) TSR, which
allowed to load trough LOADHIGH, to .EXE format. Such conversion:
- prevents memory destroying, when there is no sufficient (for
initialization) memory space in UMB;
- allows to load program into suitable (by size) UMB (not into biggest);
- prevents users disturbing by useless (for them) information (about memory,
required for initialization).
Program may be converted:
- by external converter (like my COM2EXE). Shortage: if you wish to reduce
memory allocation for your program (from 64k to something lesser), you
should know required value and point it as COM2EXE option argument.
- by adding EXE header into COM source. After discussing with Eduardo
Casino, I make template, which shows, how to do this.
- by changing source from COM to EXE style.
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