Bob, as far as I understood your CustomAction simply set the 
Property='BackupFiles' with the value specified. Try create another custom 
action of the type 50 
(http://msdn.microsoft.com/en-us/library/aa372048(VS.85).aspx), probably like 
this:
<CustomAction Id="DoBackupFiles" Property='BackupFiles' ExeCommand='/e /c  /y 
h:\Sites h:\BackupSites ' Execute='immediate' Return='ignore' Impersonate='no' 
/>
but in this case, most likely your CustomAction should be like this:
<CustomAction Id='BackupFiles' Value ='c:\xcopy' 
Property='BackupFiles'></CustomAction>
and include both CustomActions into the InstallExecuteSequence.

С уважением,
Заворотнюк Денис.

> -----Исходное сообщение-----
> От: [EMAIL PROTECTED] [mailto:wix-users-
> [EMAIL PROTECTED] От имени BOB1981
> Отправлено: 17 сентября 2008 г. 0:58
> Кому: wix-users@lists.sourceforge.net
> Тема: [WiX-users] Running Custom Action Before InstallFiles
>
>
> Hi All,
>
> Everyone has been really helpfull here with me, first thankyou soo much for
> this help.
>
> Okey now my Question, I am trying to run a Custom action before Install
> Files , this action is to just xcopy existing folder from h:\Sites to
> h:\BackupSites , i added the custome action and InstallExecute Sequence as
> below:-
>
> <CustomAction Id='BackupFiles' Value ='c:\xcopy /e /c  /y h:\Sites
> h:\BackupSites' Property='BackupFiles'></CustomAction>
>
>     <InstallExecuteSequence>
>       <Custom Action='BackupFiles' Before='InstallFiles'></Custom>
>     </InstallExecuteSequence>
>
> My Product.wxs file complie and generates an MSI with no errors.
> But when i install the MSI this action is running but with exit code 1 as
> below, part of Log file is below:
>
> Action 16:28:27: BackupFiles.
> Action start 16:28:27: BackupFiles.
> Action ended 16:28:27: BackupFiles. Return value 1.
>
> it seems the action is running but some error while executing. How can i Use
> Xcopy in this scenario to use as custom action to run before InstallFiles
> Action.
>
> Waiting.
> Thanks
>
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> InstallFiles-tp1093699p1093699.html
> Sent from the wix-users mailing list archive at Nabble.com.
>
>
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