In the latest Steam update (June 16, 2004) the format of the GCF file somewhat changed. The format no longer makes use of the section called the 'Block Entry Usage Map' in the GCF File Format. This section is still present, it just contains an empty header and no data. Because GCFScape makes use of this section and assumes it to be present, GCFScape will exhibit unexpected behavior and frequently crash. I am aware of this and working on a workaround (so you can stop e-mailing me).
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