Hallo Herr Ralf Quint,

am Montag, 5. Juni 2023 um 23:06 schrieben Sie:

> On 6/5/2023 1:56 AM, jer...@shidel.net wrote:
>>
>> Hi All,
>>
>> /There are two separate issues when using: |IF EXIST ?:\NUL| /
>>
>> /I'm lazy and wrote up a info text file over at > 
>> https://fd.lod.bz/redist/testing/devNUL/ and /
>>
>> /bug //report at //https://github.com/FDOS/freecom //that I will just > 
>> copy/paste here. /
>>
>> /Additional testing would be required to determine the cause of these > 
>> problems. Since /
>>
>> /the same problem exists for Issue #1 under MS-DOS, an argument could > be 
>> made to /
>>
>> /not fix that problem./
>>
> I am not sure why you would think this is a bug at all. 

because it differs from MSDOS.

> I am pretty sure that this test will not only fail for CD-ROM drives, but for 
> mapped network drives as well, as MSCDEX is nothing but a version of the 
> network redirector.

if exist D:\NUL

works for fixed and RAM disks in MSDOS.

this even worked in FreeDOS until it was broken in ~2003 n by PerditionC by 
some change in truename().

Tom



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