Registry - writing to HKLM

Hello,
i have problem cause when i try to write to hkey_local_machine, i get an exception with message

Quote:

---

The parameter is incorrect.

---

the code looks like this:

Code:

---

objReg = Registry.LocalMachine;
RegistryKey obj = objReg.OpenSubKey(Key, true);
               
                if (obj == null)
                {
                    objReg.CreateSubKey(Key).SetValue(Value, "");
                }
                else
                {
                    objReg.SetValue(Value, "");
                }

---

i was looking for the solution in the internet, but i only found that the couse can be the lack of administrator privileges..
i added this part:

Code:

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    [assembly: RegistryPermissionAttribute(SecurityAction.RequestMinimum, ViewAndModify = "HKEY_LOCAL_MACHINE")]

---

With no result
do you know what cases this problem?
Cheers

Use the LogonUser windows API to impersonate an administrator.

http://msdn.microsoft.com/en-us/libr...oncontext.aspx

but there is one more problem..
my username is in administrators group but in spite of this when i open regedit and click add->key in HKEY_LOCAL_MACHINE, i get the message

Quote:

---

Cannot create key: Error writing to the registry

---

so i think even if i impersonate an administrator it won't work, cause it doesn't work even through regedit...

edit
maybe i should add that i want to craete key directly in HKLM
e.g. HKLM\myKey

and i can create keys like: HKLM\Hardware\myKey

You can't Make a new key in that directory. Must choose one of the subdirectorys HARDWARE, SAM, SECURITY, SOFTWARE, or SYSTEM.

is there no possibility to create key directly in HKLM - at any way?

bump