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Tip of the Day
Language: VB7
Expertise: Intermediate
Mar 24, 2003



Application Security Testing: An Integral Part of DevOps

IsWordInstalled - Checking whether MS Word is installed

' this code assumes that you have used this Imports statement
' Imports Microsoft.Win32

Function IsWordInstalled() As Boolean
    ' Define the RegistryKey objects for the registry hives.
    Dim regClasses As RegistryKey = Registry.ClassesRoot

    ' Check whether Microsoft Word is installed on this computer,
    ' by searching the HKEY_CLASSES_ROOT\Word.Application key.
    Dim regWord As RegistryKey = regClasses.OpenSubKey("Word.Application")
    If regWord Is Nothing Then
        IsWordInstalled = False
        Console.WriteLine("Microsoft Word isn't installed")
        IsWordInstalled = True
    End If
    ' Always close Registry keys after using them.
End Function

' Example
If IsWordInstalled() Then
    Console.WriteLine("Microsoft Word is installed")
    Console.WriteLine("Microsoft Word is not installed")
End If
Marco Bellinaso
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