c# - Permission issue on server (file i/o write issue) -

there application uploads zip file , extracts in temp folder located under application folder , copies these extracted file different target location , deleted these temporary extracted files temp folder. everything works fine on local machine on iis when place same code on server machine give file i/o permission error ,even though have given full access permission temp , target location folder. can me on this??

here same code

 string path = server.mappath("~/uploadedzipfiles/" + filename);  fileupload1.saveas(path);//saves zip in temporary folder  extractzip(filename, targetfolder);  //extracts zip folder contains       //target folder path 

you must grant full access permission iis user each folder app need write,delete or edit files.

i think aren't well.

for more info how add permission , try these:

• iis_iusrs , iusr permissions in iis8
• https://support.gearhost.com/hc/en-us/articles/200342205-how-to-give-write-access-to-files-for-iusr

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update:

there libraries zip & unzip files in c# used on our projects. suggest check them well:

• sharpziplib -> http://icsharpcode.github.io/sharpziplib/
• dotnetzip -> http://dotnetzip.codeplex.com/
• zipstorer -> http://zipstorer.codeplex.com/