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+
+ When I launch GCFScape I get the following error message: |
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+
+ GCFScape v1.4.0 and up is written in C++ .NET v2.0 and such as requires the .NET runtimes + to run. See the downloads + page for more information. + |
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+
+ When I launch GCFScape I get the following error message: |
+
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+ |
+
+ GCFScape is written in C++ .NET and such as requires the .NET runtimes to run. See the downloads + page for more information. + |
+
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+
+ When I launch GCFScape I get the following error message: |
+
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+
+ GCFScape is written in C++ .NET and such as requires the .NET runtimes to run. See the downloads + page for more information. + |
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+
+ Are GCF files compressed archives? + |
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+
+ No. + |
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+
+ What are GCF files then? + |
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+
+ GCF (Assumed to stand for Game Cache File) files can best be compared to a virtual file + system not unlike FAT or other common file systems. The virtual file system supports meta + data, file fragments, checksums and other minor features. GCF files are the backbone of + Steam's content delivery system. + |
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+
+ Why do I have to close Steam to open a GCF file? + |
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+
+ GCFScape uses a technique called file mapping to directly access data in a GCF file as you + would data in memory. This is a useful technique because it means GCFScape doesn't have to + read tons of data into memory to read a GCF file and it can read a GCF file without having + to seek all over the place. +Because Steam opens GCF files in read/write mode and is liable to change the contents of + any GCF file at any time, GCFScape requires that you close Steam. If Steam was open and it + changed the contents of a GCF file while it was mapped, GCFScape would become unstable and + likely crash. + |
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+
+ When I open a package I get the following error message: |
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+
+ GCFScape requires strict read rights to a package file to maintain stability. Make sure the + package file is not open in any other program including Steam. As a work around you can + enable Volatile Access from the Options menu. Note: this may cause + GCFScape to become unstable if Steam is updating the package you have open. + |
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+
+ When I open a GCF file I get the following error message: |
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+
+ GCFScape does not know how to read the GCF file version you are attempting to open. This + could be because it is an old GCF file version that I haven't yet added support for (due to + the fact that I don't know what the format is) or a new GCF file version that a recent Steam + update produced. Either way let me know. + |
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+
+ When I open a package I get the following error message: |
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+
+ GCFScape will display this error when it maps a package file to memory only to find there + is not enough data in the file for the resulting map. This may or may not mean your file is + corrupt but almost certainly means GCFScape would crash it continued to load your package + file. + |
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+
+ When I open a package I get the following error message: |
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+
+ GCFScape will display this error when the system call MapViewOfFile() fails. This can + happen on older operating systems with primitive virtual memory management. As a work around + you can disable File Mapping from the Options menu. Note: disabling + File Mapping will incur a memory and performance penalty. + |
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+
+ When I press the Extract button, a Browse for Folder dialog appears but there + is no directory tree to allow me to select a folder. + |
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+
+ There is an unfortunate bug with the .NET framework that causes this dialog to operate + incorrectly. This is a pretty rare occurrence, but there is a workaround: +
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+
+ When I extract a file I get the following error message: |
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+ This error occurs when you attempt to extract a file that has no physical data associated + with it. This is a file that exists in the directory tree but which Steam has not yet + downloaded. Use Steam to make sure the file is fully acquired. + |
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+
+ How do I create a GCF file? + |
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+
+ As of yet, not enough is known about the GCF file format to programmatically create one. + There are still plenty of unknown fields that need an understanding before a GCF file can be + created. That said there is also no guarantee that creating a GCF file is all that is needed + for Steam to recognize and make use of it. Some other registration might be required and may + not be possible without hacking Steam. For these reasons I have no plans to add the ability + to create a GCF file. + |
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+
+ How do I modify a GCF file? + |
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+
+ The purpose of the GCF file is to make it easy for Steam to update Valve's software. When a + new version of a program (say CS) is released, all Steam has to do is look in the CS GCF + file and compare versions (hashes) of each file to determine if each file needs to be added, + updated or removed. Because of this, if you were to modify a file, Steam would interpret + this as meaning that the file is out of date and redownload the correct version of the file. + +Steam does, however, provide an interface to add or overwrite a file. To add or overwrite a + file simply place it in the corresponding directory in the Steam\SteamApps\[EMail]\[GCF + File] directory on your hard drive. You might have to create the appropriate subdirectories. + + |
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+ Will GCFScape be able to create or modify GCF files in the future? + |
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+
+ Not likely. + |
+
Ask a question...
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