[wpkg-users] newbie questions

[Yanni]

In other words, using the "filezilla" example:

"if the uninstall registry key, called filezilla, is present do not 
re-install filezilla"

Correct?

On 15/12/15 12:00, Peter Gough wrote:
> The 'uninstall' condition checks the uninstall registry keys for the value specified.
>
> Exit codes generally report '0' for success but sometimes you might also want to have other values if, for example, the software is already installed.
>
>> On 15 Dec 2015, at 9:51 PM, Yanni <y.goudetsidis at mail.cryst.bbk.ac.uk> wrote:
>>
>> Hello
>>
>> In many packages I see this line: check type="uninstall" condition="exists" path="filezilla" />
>>
>> The way I understand this is: Do not install, if software already exists on the machine. What I don't understand is on the "path" variable is only the software name. How does it know where to look?
>>
>> What about the exit codes? Are the "exit codes" I've seen in the packages syntax for the purpose of
>> displaying error messages if the install fails?
>>
>> Thank you
>>
>>
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