Writing to registry local machine error

Question

I want set default icon of some extension by C#. But this gives me error -> Security Exception was unhandled

RegistryKey FileExt = Registry.LocalMachine.OpenSubKey("SOFTWARE\\Classes", RegistryKeyPermissionCheck.ReadWriteSubTree);

How can I do that?

score 1 · Answer 1 · edited May 23 '17 at 11:55

1

Maybe the user you are using to log in on the machine does not have privileged to access or modify the registry. try run the code with administrator account and see what happens. also if there is no user logged in the same error maybe occurs for instance check this.

edited May 23 '17 at 11:55

Community

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answered Jul 26 '11 at 12:51

Jalal Said

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score 1 · Accepted Answer · answered Jul 26 '11 at 12:52

1

try to run your application as administrator.

answered Jul 26 '11 at 12:52

maniacneron

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Thanks this is working. Can I request run as admin window by C#? – sczdavos Jul 26 '11 at 13:05
check this http://stackoverflow.com/questions/2818179/how-to-force-c-app-to-run-as-administrator-on-windows-7 – maniacneron Jul 26 '11 at 13:07

score 0 · Answer 3 · edited May 23 '17 at 10:34

0

I presume this is on Windows Vista or 7.

You may need to have elevated privileges to change some values in the registry. Even a user with administrative privileges will get the UAC pop up to ask permission before a program can do this.

Have a look at a question about this.

Here is a codeproject article about gaining elevated privileges.

edited May 23 '17 at 10:34

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answered Jul 26 '11 at 12:48

iandotkelly

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MariusK · Answer 4 · 2011-07-26T13:33:54.470

0

try this method instead of yours:

public RegistryKey OpenSubKey(
    string name,
    bool writable
)

Maybe a true is enough ;-)

Registry.LocalMachine.OpenSubKey("SOFTWARE\\Classes", true);

edited Jul 26 '11 at 13:33

answered Jul 26 '11 at 13:17

MariusK

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Writing to registry local machine error

4 Answers4