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Checking existing permissions will validate what <i>should </i>be. If you want to check what <i>is</i>, then try to read from and write to, i.e. try exactly what your application will be doing.<br />
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The difference between <i>should </i>and <i>is </i>is exactly what makes people come to E-E with the question &quot;I have correct permissions, but for some reason my application does not work&quot;.
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Checking existing permissions will validate what should be. If you want to check what is, then try to read from and write to, i.e. try exactly what your application will be doing.

The difference between should and is is exactly what makes people come to E-E with the question "I have correct permissions, but for some reason my application does not work".

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In my C# winform app. what is the proper and quicker way to check a folder or file write/read &nbsp;permissions before loading the app.?
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In my C# winform app. what is the proper and quicker way to check a folder or file write/read  permissions before loading the app.?

Cheking folder or file permissions

Installation is the act of making a computer program program ready for execution. Because the process varies programs often come with a specialized program responsible for doing whatever is needed for their installation. Installation may be part of a larger software deployment process. Cross platform installer builders that produce installers for Windows, Mac OS X and Linux include InstallAnywhere, InstallBuilder and Install4J. Installers for Microsoft Windows include Windows Installer, InstallShield, and Wise Installation Studio; free installer-authoring tools include NSIS, IzPack, Clickteam, InnoSetup, InstallSimple and WiX. Mac OS X includes Installer, and also includes a separate software updating application.