The code below clears out previous versions for me.
<Product Id="23cc363c-b9d2-451b-a349-38b91bd487c6"
Name="Common 1.0.4.0"
Language="1033" Version="1.0.4.0"
Manufacturer="Company Name"
UpgradeCode="9d32a378-0b1e-492a-9a40-dd80deb8ab55">
...
<Property Id="PREVIOUSVERSIONSINSTALLED" Secure="yes" />
<!--The upgrade Id should refer to the Upgrade Code shown under
Product-->
<Upgrade Id="9d32a378-0b1e-492a-9a40-dd80deb8ab55">
<UpgradeVersion Minimum="1.0.0.0" Maximum="1.0.3.9"
Property="PREVIOUSVERSIONSINSTALLED"
IncludeMinimum="yes"
IncludeMaximum="yes" />
</Upgrade>
...
<InstallExecuteSequence>
<!--To remove previous versions-->
<RemoveExistingProducts Before="InstallInitialize" />
</InstallExecuteSequence>
...
I ran a test where I went from Version 1.0.3.0 to 1.0.4.0. In the
1.0.3.0 version the root directory contained 3 files Default.aspx,
Web.Config and TextFile1.Txt. In Version 1.0.4.0 I no longer included
TextFile1.Txt. The product code changed (I left the upgrade codes as
before). I changed the guid for the root directory component to see what
would happen when Version 1.0.4.0 was installed over the top of 1.0.3.0.
Even though the guid changed the original file TextFile1.Txt no longer
remained - I suppose this is to be expected since as far as 1.0.4.0 is
concerned TextFile1.Txt is not part of its installation.
Could someone explain if there is any significance attached to me
changing the guid of the root directory (or any other directory
component) in this context. The reason I ask is that I'm looking to
automate the wxs file creation based on a periodic publication of a
website. It seems from the above that I can just create the guids for
these directory components on the fly rather than maintain a record of
previous folders/components (some of which may or may not persist)?
<DirectoryRef Id="ZTESTWEBSITEDIR"
FileSource="C:\Temp\zTestWebSitePublished">
<!--Version 1.0.3.0 090ed5bc-58c3-41fd-90b9-dc769f5e4551-->
<!--Version 1.0.4.0 1ba6ce1b-2df1-4894-a4d3-9ec75c68ab44-->
<Component Id="zTestWebSiteRoot"
Guid="1ba6ce1b-2df1-4894-a4d3-9ec75c68ab44">
<File Id="Default" Name="Default.aspx"></File>
<File Id="WebConfig" Name="Web.Config"></File>
<!--<File Id="TextFile1.Txt" Name="TextFile1.Txt"></File>--> ...
Thanks
Norman Lough
Developer
Tel: +44 (0)191 213 5555
DDI: +44 (0)191 2028360
Email: norman.lo...@imass.co.uk
Imass Ltd, Northumbria House, Regent Centre, Gosforth, Newcastle upon
Tyne, NE3 3PX. http://www.imass.co.uk <http://www.imass.co.uk/>
Imass Limited is an Infoterra company, part of EADS Astrium
Registered in England and Wales No. 2379476
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