in reply to strawberry perl yields a "Invalid access to memory location"
Microsoft's editbin is similar to Cygwin's rebaseall. Try using `editbin /rebase` to rebase FCGI.DLL.
If that does not fix your problem, then please post a program with the least amount of code that still triggers the error. That way, everyone who wants to help will be running the same test code.
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Seekers of Perl Wisdom