VNC viewer and cd/thumb/flash/usb drive

[Mike Miller]

On Mon, 22 Oct 2007, James Weatherall wrote:

> HKEY_CURRENT_USER is writable by the current user, by definition - it's set
> to refer to the user's registry hive when they log on.  In the case of the
> Guest user, this is a temporary copy of the default user registry hive, and
> so any data saved to it won't persist.  Installing applications requires
> write access to parts of HKEY_LOCAL_MACHINE, as well as to parts of the
> filesystem, which is why non-Admins can't normally install apps to systems.

Thanks, Wez.  But what does this mean about running VNCviewer from an 
account that doesn't allow installation of software?  Some things persist 
for later logins (e.g., list of recent connections), so does that mean 
that VNCviewer writing to HKEY_LOCAL_MACHINE?

Mike


>> -----Original Message-----
>> From: vnc-list-admin "at" realvnc.com
>> [mailto:vnc-list-admin "at" realvnc.com] On Behalf Of Mike Miller
>> Sent: 19 October 2007 15:04
>> To: Seak, Teng-Fong
>> Cc: VNC List
>> Subject: Re: VNC viewer and cd/thumb/flash/usb drive
>>
>> On Fri, 19 Oct 2007, Seak, Teng-Fong wrote:
>>
>>> Mike Miller wrote:
>>>
>>>> If the user of the Windows machine does not have administrator
>>>> permissions and is not allowed to install software, does this mean
>>>> that VNCviewer cannot run from the thumb drive?  I'm thinking that
>>>> the answer is yes because it won't be able to create the
>> registry entries.
>>>
>>>    It's written to this area:
>>> HKEY_CURRENT_USER\Software\RealVNC\VNCViewer4
>>
>>
>> According to Microsoft...
>>
>> http://www.microsoft.com/technet/prodtechnol/windows2000serv/r
>> eskit/regentry/51211.mspx?mfr=true
>>
>> "A new HKEY_CURRENT_USER subtree is created each time a user logs on."
>>
>> But the VNCviewer stores information more permanently.  For
>> example, it remembers where I have previously connected.  So
>> it must at least try to create other registry keys.
>>
>> Also according to Microsoft:
>>
>> "The HKEY_CURRENT_USER subtree does not contain any data. It
>> just stores a pointer to the content of..."
>>
>> So if something is stored in HKEY_CURRENT_USER it is also
>> being written somewhere else.
>>
>> The reason I am interested in this is that some friends in
>> another department have a very heavy-handed IT staff that
>> won't allow them to install any programs.  I'm wondering if
>> there is no way around this restriction.
>>
>> Mike
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