How to write and read Client Windows registry using ASP.Net with C# ?

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Dear All,

Please help me to write and read Client Windows registry using ASP.Net with C#. Already i did the application,but it is writing and reading from Server windows registry only which application is hosted. Anyone please help me.

Best Regards,

Fuad

Posted 13-Oct-14 19:13pm

fuad.p

Updated 21-Apr-17 19:58pm

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Sergey Alexandrovich Kryukov 14-Oct-14 1:24am

Why?
—SA

fuad.p 14-Oct-14 1:33am

Its for creating node on the client PC

Sergey Alexandrovich Kryukov 14-Oct-14 2:12am

What node? why?
—SA

fuad.p 14-Oct-14 2:48am

Node means just a string value.Why because,my application want to restrict for limited users who are working in the same company,not for all users. So when accessing application first time i want to write a 'string value' to registry. After that we want to read that string value every login.

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Sergey Alexandrovich Kryukov · Answer 1 · 2014-10-13T19:26:00

Solution 1

Web applications/sites don't have access to client systems (and, just by the way, very limited access to the system of the HTTP server hosts). Especially to the system registry. Think by yourself: if such access was possible, how could you trust your systems to the Web?

—SA

Posted 13-Oct-14 19:26pm

Sergey Alexandrovich Kryukov

Comments

Maciej Los 14-Oct-14 1:53am

Nothing to add ;)
+5!

Sergey Alexandrovich Kryukov 14-Oct-14 2:10am

Thank you, Maciej.
—SA

fuad.p 14-Oct-14 1:57am

Web application is accessing client printer. Why can't we access Client registry same way?

Sergey Alexandrovich Kryukov 14-Oct-14 2:10am

Because. I tried to explain. As to the printer: printer operation cannot affect the system and, in a way, not a part of system. Consider it as a screen. Nothing wrong. Register is a very different thing. Anyway, not matter "why", you cannot access registry. Just forget it. (I don't even want to discuss such a dirty thing as ActiveX.)
—SA

Maciej Los 14-Oct-14 2:18am

Agree. Many of ActiveX is very suspicious. I'm keeping one rule: not install ActiveX.

Mathew Soji · Answer 2 · 2014-10-13T22:41:00

Solution 2

Hi,

I don't think reading and writing to windows registry is allowed due to security reasons from a ASP.Net code.
To limit access to specific users better save data in server and read when authenticated. May be think of a cookie based approach.

Thanks

Posted 13-Oct-14 22:41pm

Mathew Soji

Member 12508090 · Answer 3 · 2017-04-21T19:58:00

Solution 3

RegistryKey objRk = Registry.LocalMachine.OpenSubKey("SOFTWARE").OpenSubKey("VCR");
           cs = objRk.GetValue("db").ToString();

Posted 21-Apr-17 19:58pm

Member 12508090

Comments

[no name] 22-Apr-17 6:14am

Now that you have thrown access denied exception on the web server, what does this have to do with the security breach question that was asked and answered THREE years ago?