Needless to say, (or perhaps it does need to be said?), I do understand both the problem you addressed and the MoveFileEx & MOVEFILE_DELAY_UNTIL_REBOOT solution that I assume you have used to address it.

As an aside to the primary subject of this thread, I believe that for most situations, (Ie. excluding the one you cite of a longing running Perl process that is using the DLL that is to be replaced), there is a somewhat easier solution that removes the need for the above API. I need to test it, but I will post/email you the details once I have and you can see if you think that it merits inclusion as a part of your fix.

In simple terms, if the module to be replaced is in use only by the current perl process (Ie. the one attempting to perform the replacement), then calling FreeLibrary(), or possibly FreeLibraryAndExitThread(), then overwrite the DLL, and the call LoadLibrary() to make the new version available to the current process--if required.

Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error.
Lingua non convalesco, consenesco et abolesco. -- Rule 1 has a caveat! -- Who broke the cabal?
"Science is about questioning the status quo. Questioning authority".
In the absence of evidence, opinion is indistinguishable from prejudice.

In reply to Re^7: [JOB] The Perl Foundation seeks Windows Developer by BrowserUk
in thread [JOB] The Perl Foundation seeks Windows Developer by adamk

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":


  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.