When A-Shell encounters an error loading one of its DLLs, it will make a second try to load it from:
C:\Program Files (x86)\Common Files\A-Shell\ (64 bit systems)
or
C:\Program Files\Common Files\A-Shell\ (32 bit systems)
This shouldn't ever be necessary, but in rare situations (probably relating to antivirus software), users have received intermittent "DLL in use" errors. Storing a copy of the DLLs from the %MIAME%\bin directory in the alternate directory provides a workaround. (You'll have to create the directory and copy the DLLs manually; this is only recommended if you actually encounter the problem described.)