c# 遍历所有安装程序 获取所有已经安装的程序

/// <summary>
/// 获取所有已经安装的程序
/// </summary>
/// <param name="reg"></param>
/// <returns>程序名称,安装路径</returns>
private static List<Dictionary<string, string>> GetProgramAndPath()
{
var reg = new string[] {
@"SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall",
@"SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Uninstall"
};
string tempType = null;
int softNum = ;//所有已经安装的程序数量
RegistryKey currentKey = null;
var ls = new List<Dictionary<string, string>>(); foreach (var item222 in reg)
{
object displayName = null, uninstallString = null, installLocation = null, releaseType = null;
RegistryKey pregkey = Registry.LocalMachine.OpenSubKey(item222);//获取指定路径下的键
foreach (string item in pregkey.GetSubKeyNames()) //循环所有子键
{
currentKey = pregkey.OpenSubKey(item);
displayName = currentKey.GetValue("DisplayName"); //获取显示名称
installLocation = currentKey.GetValue("InstallLocation"); //获取安装路径
uninstallString = currentKey.GetValue("UninstallString"); //获取卸载字符串路径
releaseType = currentKey.GetValue("ReleaseType"); //发行类型,值是Security Update为安全更新,Update为更新
bool isSecurityUpdate = false;
if (releaseType != null)
{
tempType = releaseType.ToString();
if (tempType == "Security Update" || tempType == "Update")
{
isSecurityUpdate = true;
}
}
if (!isSecurityUpdate && displayName != null && uninstallString != null)
{
softNum++;
if (installLocation == null)
{
ls.Add(new Dictionary<string, string> { { displayName.ToString(), "" } });
}
else
{
ls.Add(new Dictionary<string, string> { { displayName.ToString(), installLocation.ToString() } });
}
}
}
}
return ls;
}