[
  {
    "Id": "1093315",
    "ThreadId": "457117",
    "Html": "Hi Guys,\r<br />\n<br />\nI really love the ziplib library and want to use it in my application, but... i have a performance issue which i can't resolve and i don't know what the problem is.\r<br />\n<br />\nI use the .NET 4.5 IO.Compression dll's\r<br />\n<br />\nThe same zip file with the .NET variant is 90% faster doesn't matter which file i take. Do you guys have any idee how i can speed up the unzip, am i doing something wrong?\r<br />\n<br />\nthis is the test code:\r<br />\n<br />\nprivate void button2_Click(object sender, EventArgs e)<br />\n<pre><code>    {\n        string zipPath = @&quot;D:\\Temp\\AAHG_DAG_BF_20090401.zip&quot;;\n        string extractPath = @&quot;D:\\Temp\\UnpackMS&quot;;\n        string extractPathIonic = @&quot;D:\\Temp\\UnpackIonic&quot;;\n\n        //string fileExtensionToUnpack = &quot;dat&quot;;\n\n        using (ZipArchive archive = System.IO.Compression.ZipFile.OpenRead(zipPath))\n        {\n            foreach (ZipArchiveEntry entry in archive.Entries)\n            {\n                entry.ExtractToFile(Path.Combine(extractPath, entry.FullName));\n            }\n        }\n\n        using (Ionic.Zip.ZipFile archive = Ionic.Zip.ZipFile.Read(zipPath))\n        {\n            foreach (ZipEntry entry in archive.EntriesSorted)\n            {\n                entry.Extract(extractPathIonic);\n            }\n        }\n\n    }</code></pre>\n\n",
    "PostedDate": "2013-09-16T14:13:00.207-07:00",
    "UserRole": null,
    "MarkedAsAnswerDate": null
  },
  {
    "Id": "1106804",
    "ThreadId": "457117",
    "Html": "I have an issue with DotNetZip. I deal with a large variety of zip files from various sources.  About 3% of the files cannot be opened with DotNetZip. It throws an error stating something like &quot;Cannot read as a zip file&quot;.  However, the System.IO.Compression.ZipFile class can open and extract them just fine.  I haven't been able to find any reasons for this.<br />\n",
    "PostedDate": "2013-10-12T21:43:13.187-07:00",
    "UserRole": null,
    "MarkedAsAnswerDate": null
  }
]