我试图从特定已安装应用程序(如安装文件夹,卸载字符串,版本号等等)中检索数据。当我运行以下代码时,我获取安装文件夹,但它会为UninstallString值返回四行问号。有任何想法吗?如何获取已安装程序的卸载字符串
public static void FindInstalled(string AppName)
{
StringBuilder sbProductCode = new StringBuilder(39);
int iIdx = 0;
while (
0 == MsiEnumProducts(iIdx++, sbProductCode))
{
Int32 productNameLen = 512;
StringBuilder sbProductName = new StringBuilder(productNameLen);
MsiGetProductInfo(sbProductCode.ToString(), "ProductName", sbProductName, ref productNameLen);
if (sbProductName.ToString().Contains(AppName))
{
Int32 installDirLen = 1024;
StringBuilder sbInstallDir = new StringBuilder(installDirLen);
MsiGetProductInfo(sbProductCode.ToString(), "InstallLocation", sbInstallDir, ref installDirLen);
Console.Writeline("Install Directory - {0}",sbInstallDir.ToString());
MsiGetProductInfo(sbProductCode.ToString(), "UninstallString", sbInstallDir, ref installDirLen);
Console.Writeline("Uninstall String - {0}", sbInstallDir.ToString());
}
}
}