Hey Henk,

Although not specifically stated, yes Component GUIDs need to remain stable.
A patch is a difference between two MSIs, so that would mean most everything
that is unique to a component must stay the same. Someone else on the forum
might be able to give you a more detailed answer.

http://msdn.microsoft.com/en-us/library/aa368060(VS.85).aspx

Hope this helps,

Brian Rogers
"Intelligence removes complexity." - Me
http://icumove.spaces.live.com


On Mon, Mar 9, 2009 at 2:18 AM, Henk Roos <henk.r...@aricent.com> wrote:

> Hi there,
>
> I have a question about wix and patching: If I want to create a patch from
> 2 msi's and say 1 file changed in the same feature, does the files need to
> have the same guid in the 2 msi's or are the uniqueness of the id's enough
> for this functionality if I want to use torch?
>
> Regards,
>
> Henk Roos
> Software Engineer
>
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