Thanks for the clarification Esther, greatly appreciated.

Sent from my iPhone

On Apr 15, 2013, at 10:04 PM, Esther <mori...@mac-access.net> wrote:

> Hi Cathy,
> 
> A few more details about Gatekeeper.  In Mountain Lion, as a security 
> precaution, Apple instituted a process by which application developers could 
> get a certificate they would use to "sign" their software to indicate that 
> they certify it to be free from malware. All software from the Mac App Store 
> is signed this way.  Third party software that you download may, or may not 
> be "signed".  Older third party software, even widely used and accepted 
> products such as VueScan, will probably not be signed.   This means that in 
> order to proceed with installing such software on your system, you either 
> have to knowingly temporarily disable Gatekeeper, or else use the "open" 
> dialog from the context menu, as Josh indicated, to indicate that you're 
> aware that you want to override the automatic warning that the software 
> you've downloaded is not signed.
> 
> Someone installing the same software on an older version of Mac OS X would 
> not receive this warning.   I think that Gatekeeper was actually activated in 
> the last version release of Lion (OS X 10.7), but not in the earlier 
> versions.  I'm just giving you this explanation because you are likely to 
> encounter this when you try to install other software.
> 
> HTH.  Cheers,
> 
> Esther
> 
> On Apr 15, 2013, at 1:55 PM, Josh Gregory wrote:
> 
>> That is gatekeeper, in order to open the file, do a voiceover shift m on it 
>> and go to open.
>> 
>> Sent from my iPhone
>> 
>> On Apr 15, 2013, at 7:07 PM, Cathy <flowersandhe...@gmail.com> wrote:
>> 
>>> hello
>>> I am having difficulty installing vuescan on my Mac. the message I get is:
>>> 
>>> can't open because it is from an unidentified developer.
>>> 
>>> please let me know how to allow the file to open?
>>> 
>>> also, I'd like some recommendations for an inexpensive scanner from Amazon 
>>> to go along with the vuescan.
>>> I have two scanners that I have tried and my Mac will not recognize them. 
>>> perhaps they are too old?
>>> 
>>> thank you.
>>> 
>>> Cathy
> 
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