如何知道Office的VBA组件是否已安装?

一种可能性是检查C:\Program Files\Common Files\Microsoft Shared\VBA\VBA6中是否存在vbe6.dll。或者在注册表中查找对该dll或字符串vba的引用。

请注意,对于Office2010,此位置/文件名可能有所不同,因为在VBA编辑器中有一些更改。

你为什么不试试这样的功能… found here

Option Explicit
Private Declare Function FreeLibrary Lib "kernel32" (ByVal hLibModule As Long) As Long
Private Declare Function LoadLibrary Lib "kernel32" Alias "LoadLibraryA" (ByVal lpLibFileName As String) As Long

Private Sub cmdCheck_Click()
MsgBox "Exist ???    =" & CheckForComponent("user32.dll")
End Sub

Private Function CheckForComponent(ComPath As String) As Boolean
Dim Ret As Long
Ret = LoadLibrary(ComPath)
FreeLibrary Ret

If Ret = 0 Then
        CheckForComponent = False
    Else
        CheckForComponent = True
End If

End Function 

我们正在讨论Windows Installer组件。 安装程序有一个API,您可以在其中请求是否安装了功能/组件。 of诅咒API也返回安装组件的位置。 如果是Nessacary,您可以安装丢失的组件。

您唯一需要的是组件和产品guid。

see documentation

public static  class VbePrerequisiteDetector {
    private const string VbeInstallationPathKey = @"SOFTWARE\Microsoft\VBA";
    private const string Vbe6InstallationPathValue = "Vbe6DllPath";
    private const string Vbe7InstallationPathValue = "Vbe7DllPath";

    /// <summary>
    /// Return true if VBE6 installed. VBE6 is prerequisite for for Office2003 and Office2007
    /// </summary>
    /// <returns>Return true if VBE6 installed.</returns>
    public static bool IsVbe6Installed() {
        try {
            RegistryKey vbaPathKey = Registry.LocalMachine.OpenSubKey(VbeInstallationPathKey);

            if (vbaPathKey != null) {
                if (vbaPathKey.GetValue(Vbe6InstallationPathValue) != null) {
                    string pathToVbe = (string)vbaPathKey.GetValue(Vbe6InstallationPathValue);
                    if (File.Exists(pathToVbe)) {
                        return true;
                    }

                }
            }
        }
        catch (Exception) {
            //Ignore all exceptions
        }
        return false;
    }

    /// <summary>
    /// Return true if VBE7 installed. VBE7 is prerequisite for for Office2010
    /// </summary>
    /// <returns>Return true if VBE7 installed.</returns>
    public static bool IsVbe7Installed() {
        try {
            RegistryKey vbaPathKey = Registry.LocalMachine.OpenSubKey(VbeInstallationPathKey);

            if (vbaPathKey != null) {
                if (vbaPathKey.GetValue(Vbe7InstallationPathValue) != null) {
                    string pathToVbe = (string)vbaPathKey.GetValue(Vbe7InstallationPathValue);
                    if (File.Exists(pathToVbe)) {
                        return true;
                    }

                }
            }
        }
        catch (Exception) {
            //Ignore all exceptions
        }
        return false;
    }
}

检测是否安装了VBA的最佳方法是使用msiQueryFeatureStateAPI并询问Windows Installer是否安装了该功能。下面是一些在vb.net中执行此操作的示例代码,但是您可以使用任何允许您调用COM组件的语言对此进行编码(抱歉,不熟悉innosetup)。

Private Declare Function MsiQueryFeatureState Lib "Msi" Alias "MsiQueryFeatureStateA" (ByVal Product As String, ByVal Feature As String) As Long

Public Function FVbaAvailable() As Boolean

    Dim objExcelApp As Object
    Dim strProductCode As String
    Dim nState As Long
    Dim fAvailable As Boolean = False

    Try
        ' Start an Excel instance and get the product code.
        objExcelApp = CreateObject("Excel.Application")
        strProductCode = DirectCast(objExcelApp.ProductCode, String)

        ' Get FeatureState for the VBAFiles Feature.
        nState = MsiQueryFeatureState(strProductCode, "VBAFiles")

        If (nState = 1) OrElse (nState = 3) OrElse (nState = 4) Then
            ' VBA is available.
            fAvailable = True
        End If

        ' Clean up.
        objExcelApp.Quit()
        Runtime.InteropServices.Marshal.FinalReleaseComObject(objExcelApp)
        objExcelApp = Nothing
    Catch ex As Exception
        Trace.WriteLine(ex.Message)
    End Try

    Return fAvailable
End Function