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(un)loading block device drivers: LOADSYS | DEVLOAD | USBDOS (Users)

posted by DOS386(R), 11.12.2009, 01:51

> As far as I know, the only reliable way to load AND unload block device
> drivers such as CDROM after bootup was by means of a quite cute utility
> called LOADSYS, written by a British folk called G. W. Robinson

There are many, at least for loading, about reliability, I know only FreeDOS DEVLOAD and it seems reliable (but no unload) :-)

> DDL is already part of FreeDOS now: ibiblio.org/pub/micro/pc-stuff/freedos/files/util/system/ddl.zip

No it isn't. It's just uploaded in FreeDOS area at ibiblio, and there is no source code. Even worse, it's from 1991, so from a time when FreeDOS didn't exist at all :lol:

Also, FAT28 support apparently broke many such "block-device" things, and FreeDOS DEVLOAD is possibly the only one that still works, in both FreeDOS and EDR-DOS :-)

Finally, much better than such DEVLOAD/DEVUNLOAD hacks, is of course to include the load and unload feature into the primary project and design it as unloadable TSR instead of SYS, as done in Bret's USBDOS :-)

---
This is a LOGITECH mouse driver, but some software expect here
the following string:*** This is Copyright 1983 Microsoft ***

 

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