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Right-click the file and select properties.<br />
Select the security tab and click the advanced button.<br />
Uncheck 'Allow inheritable permissions from the parent to propagate to this object and all child objects. Include these entries explicitly defined here' checkbox<br />
On the prompt click copy.<br />
Now add any other permissions you want.<br />
Click ok.<br />
Click ok.<br />
Job done
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Right-click the file and select properties.
Select the security tab and click the advanced button.
Uncheck 'Allow inheritable permissions from the parent to propagate to this object and all child objects. Include these entries explicitly defined here' checkbox
On the prompt click copy.
Now add any other permissions you want.
Click ok.
Click ok.
Job done

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LOL I mean programmatically, using C#. That's why i posted my question in programming zonefor C#
</div>


LOL I mean programmatically, using C#. That's why i posted my question in programming zonefor C#

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You can do this with the filesecurity class using the addaccessrule method.<br />
<br />
<a href="http://msdn.microsoft.com/en-us/library/system.security.accesscontrol.filesecurity.aspx" rel="ugc">http://msdn.microsoft.com/<wbr />en-us/libr<wbr />ary/system<wbr />.security.<wbr />accesscont<wbr />rol.filese<wbr />curity.asp<wbr />x</a>
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You can do this with the filesecurity class using the addaccessrule method.

http://msdn.microsoft.com/en-us/library/system.security.accesscontrol.filesecurity.aspx [http://msdn.microsoft.com/en-us/library/system.security.accesscontrol.filesecurity.aspx]

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jacko72, I know I can use this class, but how exactly can I accomplish changing the security settings of a file while preserving the existing inherited access rules and also preventing the access rules from inheriting changes<br />
in the future? 
</div>


jacko72, I know I can use this class, but how exactly can I accomplish changing the security settings of a file while preserving the existing inherited access rules and also preventing the access rules from inheriting changes
in the future?

<div>
Found the answer I was looking for on my own
</div>


Found the answer I was looking for on my own

<div>
<div class="content wysiwyg-content">
How can I change the security settings of a file while preserving the<br />
existing inherited access rules and also preventing the access rules from inheriting changes<br />
in the future?
</div>
</div>


How can I change the security settings of a file while preserving the
existing inherited access rules and also preventing the access rules from inheriting changes
in the future?

General File Security question

C# is an object-oriented programming language created in conjunction with Microsoft’s .NET framework. Compilation is usually done into the Microsoft Intermediate Language (MSIL), which is then JIT-compiled to native code (and cached) during execution in the Common Language Runtime (CLR).