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Exception writing to registry... why?

I am using a bit of code in C# to write a simple string value to the registry with very very little luck, it keeps trowing an exception every single time saying I do not have write access to the registery, or it can not write to the registry (I forget extactly)... this is the offending code:

RegistryKey registryKey = Registry.CurrentUser;

registryKey - registryKey.OpenSubKey( @"Software\CrDev Consulting\WinVOBGlue\" );

registryKey.SetValue(  "tempdir", this.temporaryDirectory.Text );

registryKey.Close( )

the tempdir value already exists within the registry, basically all I am doing is overwriting it, I tried deleting it first but as soon as Delete is called it says that it can not write the registry... is there something I am doing wrong here?

Any ideas as to what could be causing this error? I am running the application as an administrator, and it can read the value without any problems... but since it is HKCU there should be no problems, even if I am not the administrator when writing to this key.

Any help would be greatly appreciated.

Oh yeah, I feel dumb for this one.... the problem is actually with OpenSubKey( "..." ); This function is overloaded and that is the ReadOnly form of the function... OpenSubKey( "...", true ); is how the function is called to open the key with write permissions.. took me an entire day to figure this one out, lol.

Just need to make sure what you have is exactly like the examples. They almost always work. :p

Actually I failed to realize that the problem was with that function to begin with. i thought it was a permission problem or a problem with the set value function. It was not until I did a bit of searching though google that I saw an example that used a second value for the OpenSubKey function, and then it all made sense.