Steve Bennett wrote:
Hi all,
I'm trying to do something pretty simple:
1) Check the registry for a key specifying an existing installation
directory
2) If it exists, use that key as the installation directory by default
3) If it doesn't, use a default c:\program files\... directory by default.
4) Either way, let the user override it if they want.
How do I do this? One problem is I don't understand the difference
between specifying the installation directory through a tree of
<Directory> elements, or through the Value attribute of a <Property>
element.
MSI turns Directory entries into properties, then uses those property
values to determine where files end up. So use Directory/@Id to provide
the default location, then Property with the same @Id and RegistrySearch
to overwrite it. If the value isn't found, MSI doesn't change the
existing property value.
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