This actually sounds similar to a problem I was having with FreeDOS, which I needed to work around in my programs. In my case, the problem is actually with how FreeDOS allocates memory. I don't know for sure if this is the same thing or not, but it could be related.
In my particular case, the problem occurs when I try to install a TSR in CONFIG.SYS using the INSTALL= option. FreeDOS installs its code, including the code it needs to return to when it's done "installing" my TSR, at the top of conventional memory. In and of itself this is not a problem. But, the memory that the FreeDOS kernel uses is simply used without actually being allocated (there is no MCB to prevent other programs from trying to use the same memory). My programs intentionally use the upper end of conventional memory themselves (part of the process they use to minimize memory use). The result is that my programs clobber the memory that the kernel was using, and everything crashes when my program exits. The root cause is a bug in the FreeDOS kernel (not always allocating memory with an MCB like it should), not with my programs. My programs are able to detect the problem and "work around" it. AFAIK, this only occurs in FreeDOS and not any others (at least not MS-DOS or PC-DOS). Again, I don't know if this is actually related or not, but it sounds like it could be. ____________________________________________________________ Nextiva vFAX Why Do You Still Have An Old Fax Machine? http://thirdpartyoffers.juno.com/TGL3141/57585e231e5955e22334bst01vuc ------------------------------------------------------------------------------ What NetFlow Analyzer can do for you? Monitors network bandwidth and traffic patterns at an interface-level. Reveals which users, apps, and protocols are consuming the most bandwidth. Provides multi-vendor support for NetFlow, J-Flow, sFlow and other flows. Make informed decisions using capacity planning reports. https://ad.doubleclick.net/ddm/clk/305295220;132659582;e _______________________________________________ Freedos-user mailing list Freedos-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/freedos-user
