public static void Check()
{
string fin = RegistrySettings.Instance.Read(RegistrySettings.FirstInstallNotification);
if (String.IsNullOrEmpty(fin))
{
string version = "" + ClientVersion.CurrentVersion;
RegistrySettings.Instance.Write(RegistrySettings.FirstInstallNotification, version);
string url = WebsiteAccess.GetOurUrl(WebsiteAccess.OurSiteLinkKind.Welcome) + "?version=" + version;
Process.Start(url);
}
}