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Editorial Team
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Asked: 2026-05-18T00:13:53+00:00

I made a simple tool (LogAndMailApplication) that sends logs to my gmail account, for

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I made a simple tool (LogAndMailApplication) that sends logs to my gmail account, for this I used the Indy component TIdSSLIOHandlerSocketOpenSSL. To work it needs ssleay32.dll and libeay32.dll.

So at application start I extract from exe resources the 2 dll and I copy them to the application folder.

All the indy compoennts are in a datamodule I destroy before closing the application.

After destroying the datamodule I try to delete the dlls but I cannot.

I just used DeleteFile, but that worked great for all the other files I delete on application exit (incluging an ini file).

I tried to make a simple exe that just deletes the 2 dll and it works. So the problem is that the 2 dll are somehow locked until the LogAndMailApplication is not closed, how to solve the problem?

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1 Answer

  1. Editorial Team

    You can do the following: at the very end of your code use

    FreeLibrary(GetModuleHandle(‘ssleay32.dll’));
    FreeLibrary(GetModuleHandle(‘libeay32.dll’));
    DeleteFile(PathToDLL1);
    DeleteFile(PathToDLL2);

    This should work.

    Alternatively you can get rid of OpenSSL and use SSL components from our SecureBlackbox.

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