My application requires Word to be installed, so it checks the registry key
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\App Paths\Winword.exe
On one PC, this registry key is missing even though Word is installed and runs fine. We've tried uninstalling and reinstalling Word and the key is still not there. On other seemingly-identical PCs it's there. The same applies to all the office apps.
The PC is Windows server 2008 SP2 64 bit running 32 bit office 2010. The key does correctly appear under:
HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\App Paths\Winword.exe
but on other servers it's in both places
Any ideas as to what could cause this?