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Concerning GCFScape

Concerning GCFScape

GCFScape is a little tool that can open up and extract from GCF data that are used by Steam for video game web content storage. It can be downloaded.

GCFScape 1.7.1 or much better is called for to open VPK data. To search the base web content of a game utilizing VPK, you must open the index data pak_01_dir. vpk.


Idea: When you install GCFScape ensure you associate GCF data with GCFScape so they'’ ll open immediately. The documents will be offered symbols if this has been done.

When a GCF is opened, the program will resemble this:

Clicking the little button, you can browse the folders clicking them so they broaden and also show subfolders thus, after that clicking on a folder will reveal the components to the right:

Right clicking a documents will raise a context menu from where you can extract from:

Clicking this will raise a home window where you can pick your conserve place:

Clicking OK will draw out the file to your chosen location.

Supported Formats

Along with GCF data, GCFScape also sustains Half-Life BSP, NCF, PAK, VPK, HEAP, and also XZP can find more here what is gcfscape from Our Articles


The following choices are available inside the options menu in GCFScape:


Enable verbose logging (allowed by default). Disable this option to reduce log outcome. This can be beneficial when you are extracting large quantities of data and only want to be notified of errors.

Submit Mapping

Enable Windows data mapping (enabled by default). File mapping is an efficient approach of random file gain access to. Some running systems have troubles with documents mapping (particularly Windows 98) as well as may produce mistakes; disable this option in such cases.

Quick File Mapping

Map the whole documents to memory (instead of pieces of it as needed). Properly caches the documents in memory. Can speed up points up if you have adequate cost-free memory. Some operating systems have problems with documents mapping (particularly Windows 98) as well as may create errors; disable this choice in such instances.

Unpredictable Gain access to

Enable unpredictable file gain access to (made it possible for by default). By default, Steam loads.gcf documents in read/write mode and is reliant alter their components at any moment (as updates take place). Must this take place, GCFScape would come to be unsteady and most likely crash. Volatile access enables you to open up GCF files filled in Vapor at your very own risk. It is generally steady and can confirm beneficial for analyzing which files Steam is upgrading.

Compose Gain access to

Enable write data accessibility (handicapped by default). Create gain access to gives GCFScape the capability to change particular data as well as is not compatible with unpredictable gain access to for the instability a mix of both would create. This option is required for GCF defragmentation.


In variation 1.5.0, GCFScape added the capacity to verify GCF documents. This procedure computes a series of crossbreed CRC 32 and also Adler-32 checksums for each and every documents within a GCF documents as well as compares each checksum to the checksums precalculated and also saved within the GCF data. This feature supplies a fast alternative to Steam for examining GCF corruption and listing corrupt and insufficient documents, yet can not repair corrupted GCF documents as Steam can.

To validate all or part of a GCF data utilizing GCFScape, finish the adhering to steps:

  1. Launch GCFScape.
  2. From the Documents menu, open your GCF documents.
  3. Surf to the top level folder you wish to validate (root for the entire GCF file).
  4. Right click on the folder as well as select Validate.
  5. Repeat steps 2-4 for every GCF documents you desire to verify.


In version 1.6.0, the capacity to defragment GCF data was included in GCFScape. This attribute was added after a number of examinations by Nem showed that Vapor'’ s integrated in defragmenter did not always completely defragment a game'’ s GCF files. As a matter of fact, Heavy steam would certainly usually wrongly report a fragmentation of 0% when the true fragmentation was as high or more than 10%, a worth incredibly harmful to efficiency.

GCFScape specifies the fragmentation ratio to be the number of utilized clusters that are out of order split by the total variety of made use of clusters. The first cluster in a file can never ever be out of order, so a documents that includes only one collection (typically < <8192 B) can never ever be fragmented. At 10% fragmentation, a typical ~ 785 MB GCF documents (about 100,000 collections at 8192 B per cluster) would certainly need, usually, one seek procedure for each 80 KB of data read. You can see the fragmentation of any type of data or folder (root for the whole GCF documents) by checking its residential or commercial properties.

To defragment your GCF data using GCFScape, finish the following steps:

  1. Closure Heavy steam.
  2. Launch GCFScape.
  3. In the Options food selection, allow Write Accessibility as well as disable Volatile Accessibility.
  4. From the Data menu, open your GCF documents.
  5. From the Tools menu, select Defragment.
  6. Repeat steps 4-5 for each and every GCF documents you desire to defragment.

Keep in mind: The defragmentation procedure is fairly sluggish, but can be canceled and returned to at any moment.

Running GCFScape

GCFScape requires. NET 4.0 (or later), and also Visual C++ 2010 Runtime (x86 or x64) to run.

These demands apply to all running systems, MacOS and Linux customers will certainly require to mount these in order to run GCFScape via White wine.


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