How to find whether office is installed

How can I programatically find whether MS-office is installed on a machine, 开发者_如何学编程and if installed what components are installed,version and stuff like that.

How do I find whether it is office professional or office ultimate.

You can look in the Registry.

According to the help, it can be found in HKEY_LOCAL_MACHINE\Software\Microsoft\Office\VERSION\Common\InstallRoot.

The article also describes how to find specific product information, like components, type of release, etc.

This SO question explains how to read a key from the registry using C#, if you need help for this part.

In the Registry:

HKLM\Software\Microsoft\VERSION\Common\InstallRoot

Where VERSION is the version of Office you are looking for