I need to zip up an 8Gb file using C# - do you know of any freeware libraries
I can use to accomplish this? I guess it needs to be Zip64 to support such
file sizes.
I tried something called sharpziplib but it doesn't support >2Gb files -
they are working on it however but I cannot wait...
11  12149 
Hello, MrNobody!
MI need to zip up an 8Gb file using C# - do you know of any freeware
Mlibraries
MI can use to accomplish this? I guess it needs to be Zip64 to support
Msuch
Mfile sizes.
MI tried something called sharpziplib but it doesn't support >2Gb
Mfiles -
Mthey are working on it however but I cannot wait...
Did you try GZipStream?
( http://msdn2.microsoft.com/en-us/lib...zipstream.aspx )
You must be using .NET 2.0 to work with it.
--
Regards, Vadym Stetsyak
www: http://vadmyst.blogspot.com
"Vadym Stetsyak" wrote:
Hello, MrNobody!
MI need to zip up an 8Gb file using C# - do you know of any freeware
Mlibraries
MI can use to accomplish this? I guess it needs to be Zip64 to support
Msuch
Mfile sizes.
MI tried something called sharpziplib but it doesn't support >2Gb
Mfiles -
Mthey are working on it however but I cannot wait...
Did you try GZipStream?
( http://msdn2.microsoft.com/en-us/lib...zipstream.aspx )
You must be using .NET 2.0 to work with it.
--
Regards, Vadym Stetsyak
www: http://vadmyst.blogspot
Looks like GZip wouldn't work either, from the 'Remarks' :
"This class cannot be used to compress files larger than 4 GB."
MrNobody <Mr******@discu ssions.microsof t.comwrote:
>
"Vadym Stetsyak" wrote:
>Hello, MrNobody!
MI need to zip up an 8Gb file using C# - do you know of any freeware
Mlibraries
MI can use to accomplish this? I guess it needs to be Zip64 to support
Msuch
Mfile sizes.
MI tried something called sharpziplib but it doesn't support >2Gb
Mfiles -
Mthey are working on it however but I cannot wait...
Did you try GZipStream?
( http://msdn2.microsoft.com/en-us/lib...zipstream.aspx )
You must be using .NET 2.0 to work with it.
--
Regards, Vadym Stetsyak
www: http://vadmyst.blogspot
Looks like GZip wouldn't work either, from the 'Remarks' :
"This class cannot be used to compress files larger than 4 GB."
4GB is the maximum addressible size for a 32-bit pointer. Also, GZIP is not
the same as ZIP, so if you need PKZIP compatibility, then you need to get
another library.
--
Thomas T. Veldhouse
Key Fingerprint: 2DB9 813F F510 82C2 E1AE 34D0 D69D 1EDC D5EC AED1
"MrNobody" <Mr******@discu ssions.microsof t.comwrote in message
news:E0******** *************** ***********@mic rosoft.com...
|
|
| "Vadym Stetsyak" wrote:
|
| Hello, MrNobody!
| >
| MI need to zip up an 8Gb file using C# - do you know of any freeware
| Mlibraries
| MI can use to accomplish this? I guess it needs to be Zip64 to support
| Msuch
| Mfile sizes.
| >
| MI tried something called sharpziplib but it doesn't support >2Gb
| Mfiles -
| Mthey are working on it however but I cannot wait...
| >
| Did you try GZipStream?
| ( http://msdn2.microsoft.com/en-us/lib...zipstream.aspx )
| You must be using .NET 2.0 to work with it.
| >
| --
| Regards, Vadym Stetsyak
| www: http://vadmyst.blogspot
|
| Looks like GZip wouldn't work either, from the 'Remarks' :
|
| "This class cannot be used to compress files larger than 4 GB."
Which is wrong too, actually the limit is 2GB, that's the max.size of an
object in .NET and the GZIP library needs the complete file to be read in a
single byte array (which obviously is limitted to 2GB).
Willy.
OK guys, found someone who made a modification to the sharpziplib out there
to support Zip64 and it works. Compressed my 7.6 Gb file and then used Winzip
to uncompress it. Works good !
thanks for your time trying to help me :)
Would you like to share the name/web address of "someone". Might be useful
to know.
Steve
"MrNobody" <Mr******@discu ssions.microsof t.comwrote in message
news:D2******** *************** ***********@mic rosoft.com...
OK guys, found someone who made a modification to the sharpziplib out
there
to support Zip64 and it works. Compressed my 7.6 Gb file and then used
Winzip
to uncompress it. Works good !
thanks for your time trying to help me :)
http://www.icsharpcode.net/OpenSourc.../Download.aspx
Nirosh
"Steve Barnett" <no****@nodomai n.comwrote in message
news:u4******** ******@TK2MSFTN GP02.phx.gbl...
Would you like to share the name/web address of "someone". Might be useful
to know.
Steve
"MrNobody" <Mr******@discu ssions.microsof t.comwrote in message
news:D2******** *************** ***********@mic rosoft.com...
>OK guys, found someone who made a modification to the sharpziplib out
there
to support Zip64 and it works. Compressed my 7.6 Gb file and then used
Winzip
to uncompress it. Works good !
thanks for your time trying to help me :)
Isn't that the original source. I was interested in the Zip64 variant.
Steve
"Champika Nirosh" <te**@tc.comwro te in message
news:uW******** ******@TK2MSFTN GP06.phx.gbl...
http://www.icsharpcode.net/OpenSourc.../Download.aspx
Nirosh
"Steve Barnett" <no****@nodomai n.comwrote in message
news:u4******** ******@TK2MSFTN GP02.phx.gbl...
>Would you like to share the name/web address of "someone". Might be
useful to know.
Steve
"MrNobody" <Mr******@discu ssions.microsof t.comwrote in message
news:D2******* *************** ************@mi crosoft.com...
>>OK guys, found someone who made a modification to the sharpziplib out
there
to support Zip64 and it works. Compressed my 7.6 Gb file and then used
Winzip
to uncompress it. Works good !
thanks for your time trying to help me :)
Willy Denoyette [MVP] <wi************ *@telenet.bewro te:
>
"MrNobody" <Mr******@discu ssions.microsof t.comwrote in message
news:E0******** *************** ***********@mic rosoft.com...
|
|
| "Vadym Stetsyak" wrote:
|
| Hello, MrNobody!
| >
| MI need to zip up an 8Gb file using C# - do you know of any freeware
| Mlibraries
| MI can use to accomplish this? I guess it needs to be Zip64 to support
| Msuch
| Mfile sizes.
| >
| MI tried something called sharpziplib but it doesn't support >2Gb
| Mfiles -
| Mthey are working on it however but I cannot wait...
| >
| Did you try GZipStream?
| (
http://msdn2.microsoft.com/en-us/lib...zipstream.aspx )
| You must be using .NET 2.0 to work with it.
| >
| --
| Regards, Vadym Stetsyak
| www: http://vadmyst.blogspot
|
| Looks like GZip wouldn't work either, from the 'Remarks' :
|
| "This class cannot be used to compress files larger than 4 GB."
Which is wrong too, actually the limit is 2GB, that's the max.size of an
object in .NET and the GZIP library needs the complete file to be read in a
single byte array (which obviously is limitted to 2GB).
Why does GZIP require the entire file to be in memory first? It is a sliding
window algorithm similar to LZW. In any case, implementation is via a
GZIPStream, which doesn't seem to require the entire file be loaded into
memory first, so I believe 4GB is indeed the limit (which is the limit of
addressable memory with a 32-bit pointer).
--
Thomas T. Veldhouse
Key Fingerprint: 2DB9 813F F510 82C2 E1AE 34D0 D69D 1EDC D5EC AED1 This thread has been closed and replies have been disabled. Please start a new discussion. Similar topics | |
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