Bugs item #1717526, was opened at 2007-05-11 17:32
Message generated for change (Comment added) made by heaths
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Category: pyro
Group: v3.0
>Status: Closed
>Resolution: Rejected
Priority: 1
Private: No
Submitted By: Heath Stewart (heaths)
>Assigned to: Heath Stewart (heaths)
Summary: New WiX patch build can't build 2.0-style patches

Initial Comment:
1. candle fails if the Classification, Manufacturer, etc. properties 
(non-booleans) aren't authored, but the existence of these attribute values 
generate an MsiPatchMetadata table which, in some scenarios, makes Windows 
Installer consider the MSP a 3.0-style patch.

2. patch families may still be interesting with 2.0-style patches because it 
limits potential regression with obsolescence, yet specifying patch families 
forces creation of the MsiPatchSequence table, which in most scenarios 
identifies the patch as a 3.0-style patch.

A potential solution would be to pass in patches to obsolesce like 
//PatchCreation/ReplacePatch and then default to a 2.0-style patch unless 
now-optional attributes (like PatchFamily/@Version) are specified. Or have an 
explicit attribute and throw errors accordingly. 3.0-style patches can specify 
obsolescence in the MSP's Revision Number summary property, but 2.0-style 
patches cannot have either an MsiPatchMetadata table or MsiPatchSequence table.

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>Comment By: Heath Stewart (heaths)
Date: 2008-05-02 01:57

Message:
Logged In: YES 
user_id=1335104
Originator: YES

Developers wishing to use the new patch build functionality are encouraged
to use the much improved MSI 3.0-style patches. 2.0-style patches can still
be created using the PatchCreation element.

A separate bug will be opened to make Word Count authorable for patches.

----------------------------------------------------------------------

Comment By: Heath Stewart (heaths)
Date: 2007-05-24 15:40

Message:
Logged In: YES 
user_id=1335104
Originator: YES

Additionally, the Word Count should be modifiable, with perhaps a minimum
value of "2" (equates to MSI 2.0 or higher is required). This, unlike other
similar fields, is a lookup table - not the typical "major * 100 + minor"
format. This should not dictate the creation of the MsiPatch* tables in the
MSP, however. It is perfectly reasonable to require a minimum of MSI 2.0 to
install the patch, but support MSI 3.0+ features. .NET 2.0 patches from
Microsoft currently are authored this way.

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