installation - Why isn't my Registry Launch Condition working in my Windows Installer file? -

I am trying to install SharePoint 2010 before allowing the installer to continue. To do this, I added the following "Search Target Machine" property:

name = "search for MOSS2010"
property = SHAREPOINT2010INSTALLED
RegKey = software \ Microsoft \ Shared Tools \ Web Server extension \ 14.0
root = vsdrrHKLM = value = SharePoint

On my system, the path is indicated and the value "SharePoint" is "installed"

Now, Launch condition added:
name = SharePoint 2010 installed
Status = SHAREPOINT2010INSTALLED = "Installed"
InstallUrl = (empty)
Message = SharePoint 2010 This Pack The installation must be installed first.

Now, on my system, when SP2010 is installed, it is evaluating it as false because the installer has failed the above message.

Is there a way to debug properties properties set up time? Or is there something stupid?

Thank you.

It seems as if your installer (for example) could be a 32-bit installer, But the registry keys can be in the 64-bit registry (or vice versa).

To create a 64-bit installer through Visual Studio, see: