About GCFScape - NemPosted: Jan 2nd, 2004 - 4:16:14 pm

GCFScape is an explorer like utility that enables users to browse Half-Life packages and extract their contents. GCFScape supports .bsp, .gcf, .ncf, .pak, .sga, .vpk, .wad and .xzp packages and runs independently of Steam.



  • Supports .bsp, .gcf, .ncf, .pak, .sga, .vpk, .wad and .xzp packages.
  • Explorer like interface for viewing package contents.
  • Extract any file or folder within a package.
  • Shell execute (preview) any file within a package.
  • Validate any file or folder within a package.
  • Defragment .gcf files.
  • Search for files within a package.
  • Configurable columns.
  • Recent package menu.
  • 100% Free.
Modified: Nov 23rd, 2008 - 7:44:56 pm[ 503474 Views ]

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1. kbro16Posted: Feb 8th, 2004 - 4:44:36 pm

what does not found in block entries mean and when i run steam that pos corrupt file thing runs and when i try to paly cs in steam a black screen comes up and i have to restart my pos comp u know watsup

2. NemPosted: Feb 8th, 2004 - 6:27:37 pm

It means that the file exists in the directory for the GCF file but Steam hasn't yet downloaded it.

3. STiKPosted: May 11th, 2004 - 2:28:14 pm

Hey how come u can't delete files in side GCF files is that gonna be inside the next GCFscape

4. NemPosted: May 12th, 2004 - 9:24:48 pm

Probably not.

GCF files are quite complex and while enough is known about them to be able to extract them there is not enough known to be able to modify them. This would probably require some documentation from Valve.


5. egostarModified: May 15th, 2004 - 5:52:57 pm

... hope this doesnt leave me sounding like an idiot... but...
i was killing some time today and i came across something that might peak your interest. I ran AnalogX's TextScan on steam.exe and among the long stream of nothingness that came out was a version number and copyright info ( here it is: deflate 1.1.4 Copyright 1995-2002 Jean-loup Gailly ). wondering what steam was doing with non-valve software i did a quick google search and this page poped up. interestingly, from what i gather zlib is a data compression library. While i neither have the time or the expertise to flush out its connection to steam, i was hopeing that it might become useful to your research on the .gcf format. good luck and keep up the great work nem.

6. NemPosted: May 17th, 2004 - 5:11:10 pm

Thanks for the info; I don't think that it has anything to do with the GCF files though because they aren't compressed, they are encrypted. (And yes, ZLIB is a well known decompression library.)


7. warbanModified: Aug 30th, 2004 - 5:31:42 am

Major Possible bug.

Currently the hl2 "base source shared materials.gcf"is not being opened and comming up with an error for some people. (failed to map error)

i was getting the error untill i found out that my deskbar program "object dock".
was stoping gfc from opening while it was running
when i closed it it opened fine.

Possible bug?

8. scorpPosted: Sep 2nd, 2004 - 11:49:30 pm

wherehi nem firstly thanx for the program and i have a question for you(or other users if they know)i downloaded and ran your program.
i extracted the dod 1,3 into my hl directory.i entered the hl and clicked custom game.there was a dod bar.i clicked activate.but nothing happened. i cant activate it and hl shows its size 0mb but its almost 650mb.pls help me i want to play this game!!

9. BluefangPosted: Sep 3rd, 2004 - 1:44:11 pm

you have to run DOD from the 'Play Games' menu in steam
(notice that one of the games is DOD)
you don't have to extract anything.

10. scorpPosted: Sep 4th, 2004 - 1:48:21 am

but i can't see the dod icon in play games section(i downloaded the stem with dod. There is a game cache file for dod in steamapps folder)

11. NemPosted: Sep 4th, 2004 - 8:31:42 am

Maybe ask in the offical Steam forums?

12. ninPosted: Nov 2nd, 2004 - 10:40:57 am


Uhm, nem. I have a question. It maybe just because im a newb, but I cant seem to get the program to run, nomatter what i do. I installed the ms NET framework as supposed, but when i launch GCFScape, i get these errors:


I have posted on the official forums to, but nobody seems to have an answer for me. So maybe you do... I have reinstalled MANY times now. But i do not know what i am doing wrong.

Plz, help me.....

13. ninPosted: Nov 2nd, 2004 - 10:43:31 am

hehe, ups. Sorry the first one is in danish. It says:

The procedure point strrchr was not found in the DLL-Library MSVCR71.dll

14. BluefangModified: Nov 2nd, 2004 - 1:19:54 pm

look at the second error. the title is '.NET initialization error'

that most likely means that you install of the .NET framework is corrupt or improperly installed.

go to Windows Update to get the most recent patch

what Steam game package do you own?

15. NemPosted: Nov 3rd, 2004 - 4:10:55 pm

Yep, it looks like a .net installation problem to me. You might want to scan your computer for viruses/adware to make sure nothing is interfering with it. Also, what version of the .net framework are you using?

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