[wix-devs] Determining msiexec command line repair options from within a custom action

[Ron Martin]

Please substitute the following paragraph for the third paragraph in my 
original posting:

    On the other hand, "-f", itself, is invalid: it silently aborts the
    parsing of the command line. Unfortunately, this means that anything
    that follows the repair option on the command line is also ignored.
    CanRepairUsers fails because because the definitions of TEMPDOMAIN
    and TEMPUSER are thus ignored.

On 8/21/2022 10:23 PM, Ron Martin via wix-devs wrote:
> I am trying to determine the active msiexec command-line repair 
> options from within a custom action such as CreateUser.
>
> I have determined that the internal repair command adds "-f " to the 
> command line. This seems to assume that there is only one repair 
> option. In reality, there are quite a few, and "-f" is not among them. 
> The repair options all contain a second letter determining what is to 
> be repaired. These options can be merged: For example, if "-fx" and 
> "-fy" are both valid and compatible, "-fxy" will activate both 
> actions. The syntax in the documentation does not include this merging.
>
> [On the other hand, "-f", itself, is invalid: it silently aborts the 
> parsing of the command line. Unfortunately, this means that file 
> names, etc., that may follow the repair option on the command line are 
> also ignored. One of our failing tests "CanRepair..." fails because of 
> this. ]
>
> I cannot find any place in our code that differentiates these cases, 
> nor have I figured out how such a differentiation can be made. What 
> does msiexec do with the parsed repair options and how can they be 
> accessed from our code? I have one place in my new code where I would 
> like to use this information, but I don't know how to access it.
>
> I think that a general discussion of the different repair options is 
> in order with regard to how they should affect Wix operations overall.
>
> Is anyone game?
>
> Ron
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