what algorithm does "mszip" use?

Question

Hello all,

    I wrote a program to poll data from server, to reduce the size of package, I compress the data at server using java.util.zip, and it use DEFLATED algorithm. But I failed to decompress it by using Windows.Storage.Compression.Decompressor(). Do they use different algorithm, or Decompressor cann't use for decompress data from server?

Answer 1

 

Hello,

 

I would suggest you write the java.util.zip result into a file and try to use this sample code to decompressor this file to see if it problem still exist.

http://code.msdn.microsoft.com/windowsapps/Compression-sample-9d57900f/sourcecode?fileId=50864&pathId=1754477665

 

Best regards,

Jesse

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Jesse Jiang [MSFT]
MSDN Community Support | Feedback to us

Answer 2

Hi Jesse,

    Thank you for your reply. But I must decompress data in WinRT component using c++. Is there any other method?

Answer 3

Hello Haaaappy,

The following algorithms can be used by the Windows.Storage.Compression.Decompressor:

Mszip | mszip - The compressor will use the MSZIP compression algorithm.
Xpress | xpress - The compressor will use the XPRESS compression algorithm.
XpressHuff | xpressHuff - The compressor will use the XPRESS compression algorithm with Huffman encoding.
Lzms | lzms - The compressor will use the LZMS compression algorithm.

CompressAlgorithm enumeration
http://msdn.microsoft.com/en-us/library/windows/apps/windows.storage.compression.compressalgorithm.aspx

I hope this helps,

James

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Windows Media SDK Technologies - Microsoft Developer Services - http://blogs.msdn.com/mediasdkstuff/