[plt-scheme] Executables

I wrote a proggie for my boss that handles ISS's log files.
Now I want to put it on a pc and have it work.
But it says (after copying the neccessary dlls, of course):
standard-module-name-resolver: collection not found: "mzlib" in any of: ("C:\\Documents and Settings\\eran\\Application Data\\PLT Scheme\\205\\collects")
reference to undefined identifier: graphical-read-eval-print-loop 
[Exited]

What could be wrong?

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