Extract a .ff files (fast files) to view .gsc files inside using C#

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I want to extract a .ff files (fast files) to view .gsc files inside using C#. I can't find any help. Thanks in advance.
Files that contain the .ff file extension are most commonly used by a variety of gaming applications. Commonly referred to as Fast Files, the information that is stored in the FF files will vary depending on the game that the file is associated with.
Some of the games that use the .ff file extension include Call of Duty 4.
So far i have tried this:

C#

SevenZip.SevenZipExtractor.SetLibraryPath(@"C:\Users\Desktop\SevenZipSharp.dll");
using (var file = new SevenZipExtractor(@"C:\Users\Desktop\check\common.ff"))
           {
               file.ExtractArchive(@"C:\Users\Desktop\check\");
           }

But it showing following error:
An unhandled exception of type 'System.ArgumentException' occurred in SevenZipSharp.dll
Additional information: Extension "ff" is not a supported archive file name extension.

I need a way to extract .ff files. I am not sure how can i do this.

Posted 1-Sep-15 0:46am

Arindom_chanda

Updated 1-Sep-15 21:07pm

v5

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Comments

Thanks7872 1-Sep-15 7:32am

Nobody will be writting code for you. What have you tried so far?

Arindom_chanda 1-Sep-15 7:49am

SevenZip.SevenZipExtractor.SetLibraryPath(@"C:\Users\Desktop\SevenZipSharp.dll");
FileStream fs = File.OpenWrite(Path.Combine(@"C:\Users\Desktop\check", "common.ff"));

using (var file = new SevenZipExtractor(@"C:\Users\Desktop\check\common.ff"))
{
file.ExtractArchive(@"C:\Users\Desktop\check\");
}

Arindom_chanda 1-Sep-15 7:52am

Here is the error:
A first chance exception of type 'System.IO.IOException' occurred in mscorlib.dll
Additional information: The process cannot access the file 'C:\Users\Desktop\check\common.ff' because it is being used by another process.

Richard MacCutchan 1-Sep-15 7:50am

What are .ff files, .gsc files, extract from where?
Please edit your question and provide proper details of your problem.

Arindom_chanda 1-Sep-15 7:56am

Please check now

Richard MacCutchan 1-Sep-15 8:01am

Check what? You still have not explained what your problem is. Please edit your question* and give full details of where your code is failing. We cannot guess what is in your mind, or see what is on your screen.

*Hint: Use the Improve question link above.

Arindom_chanda 2-Sep-15 3:05am

I have added code i used to extract. It showing Extension "ff" is not a supported archive file name extension". I need to know a way to extract it and view files inside.

Richard MacCutchan 2-Sep-15 3:30am

The error message is telling you that SevenZipExtractor does not recognise the .ff file type. Try https://www.google.com/search?q=.ff+files and find out what the format of these files is.

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CHill60 · Answer 1 · 2015-09-01T02:03:00

You have posted the following code

SevenZip.SevenZipExtractor.SetLibraryPath(@"C:\Users\Desktop\SevenZipSharp.dll");
 FileStream fs = File.OpenWrite(Path.Combine(@"C:\Users\Desktop\check", "common.ff"));

 using (var file = new SevenZipExtractor(@"C:\Users\Desktop\check\common.ff"))
 {
 file.ExtractArchive(@"C:\Users\Desktop\check\");
 }

and stated

Quote:
Here is the error:
A first chance exception of type 'System.IO.IOException' occurred in mscorlib.dll
Additional information: The process cannot access the file 'C:\Users\Desktop\check\common.ff' because it is being used by another process

The line

FileStream fs = File.OpenWrite(Path.Combine(@"C:\Users\Desktop\check", "common.ff"));

is opening the file, as is

VB

using (var file = new SevenZipExtractor(@"C:\Users\Desktop\check\common.ff"))

Lose the line that starts FileStream fs = ... and try again