I'm new to wix and msi but it looks like you'll need to use a custom action,
you could call into a dll or write a
vbscript (it looks like using scripts in custom actions may be frowned upon),
anyway you can set a property to a new
guid and then reference that, the simplest example would be with a vbscript
custom action.
<Product ...>
...
<Binary Id="VbScriptKit" SourceFile="VbScriptKit.vbs"/>
<CustomAction Id="CreateUserGuid" Return="check" BinaryKey="VbScriptKit"
VBScriptCall="CreateUserGuid"/>
<InstallExecuteSequence>
<Custom Action="CreateUserGuid" After="CostFinalize"/>
</InstallExecuteSequence>
...
</Product>
---
VbScriptKit.vbs (make sure this is ASCII)
Option Explicit
Function CreateUserGuid()
Session.Property("USERGUID") = Mid(CreateObject("Scriptlet.TypeLib").GUID,
2,36)
CreateUserGuid = 1
End Function
---
you should make the function more robust but it's just a sample.
Here's the relevant snippet of the install log:
Action ended 21:49:36: CostFinalize. Return value 1.
MSI (s) (74:20) [21:49:36:716]: Doing action: CreateUserGuid
MSI (s) (74:20) [21:49:36:716]: Note: 1: 2205 2: 3: ActionText
Action start 21:49:36: CreateUserGuid.
MSI (s) (74:20) [21:49:36:777]: Creating MSIHANDLE (29) of type 790542 for
thread 4128
MSI (s) (74:B4) [21:49:36:778]: Creating MSIHANDLE (30) of type 0 for thread
7604
MSI (s) (74:AC) [21:49:36:779]: Generating random cookie.
MSI (s) (74:AC) [21:49:36:809]: Created Custom Action Server with PID 2904
(0xB58).
MSI (s) (74:D4) [21:49:36:969]: Running as a service.
MSI (s) (74:D4) [21:49:36:973]: Hello, I'm your 32bit Impersonated custom
action server.
MSI (s) (74!20) [21:49:36:987]: PROPERTY CHANGE: Adding USERGUID property. Its
value is
'06520F92-D326-41FE-AAE9-0AC064D745CC'.
MSI (s) (74:B4) [21:49:36:988]: Closing MSIHANDLE (30) of type 0 for thread 7604
MSI (s) (74:B4) [21:49:36:988]: Closing MSIHANDLE (29) of type 790542 for
thread 4128
Action ended 21:49:36: CreateUserGuid. Return value 1.
Obviously you can do what you want with the USERGUID property, hope that helps.
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