Your problem description doesn't reflect my experience: 

c:\test>dir /b fred
File Not Found

c:\test>perl -E"mkdir 'fred' or die $!; mkdir 'fred/bill' or die $!"

c:\test>dir /b fred
bill

c:\test>dir /b fred\*
bill

[download]

The only thing that I can see that might change the above, is if the code you are using has set the umask?

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In the absence of evidence, opinion is indistinguishable from prejudice.
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In reply to Re: mkdir() problem on windows by BrowserUk
in thread mkdir() problem on windows by myuserid7

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