About Registry key Yael 5/29/2007 6:34:00 AM Hi, I have in a C# project this method to check if my com add-in alredy installed private static bool IsAlreadyInstalled() { Microsoft.Win32.RegistryKey key = Microsoft.Win32.Registry.ClassesRoot.OpenSubKey("MatarotToolbar.Connect"); return key != null; } It's return to me allways true, even I did uninstall to check it..any idea?? I tried to write: "MatarotToolbar.Conne" Then, it's return false (Connect -- >Conne ). if I uninstall the com add-in, this key is still in the Registry?? Thank's

Re: About Registry key "Dmitry Streblechenko" <dmitry[ at ]dimastr.com> 5/29/2007 5:56:18 PM See my reply to your previous post. Dmitry Streblechenko (MVP) http://www.dimastr.com/ OutlookSpy - Outlook, CDO and MAPI Developer Tool "Yael" <Yael[ at ]discussions.microsoft.com> wrote in message news:174FE04B-08D1-43C9-89D8-470F901BFC5D[ at ]microsoft.com... [Quoted Text] > Hi, > I have in a C# project this method to check if my com add-in alredy > installed > > private static bool IsAlreadyInstalled() > { > Microsoft.Win32.RegistryKey key = > Microsoft.Win32.Registry.ClassesRoot.OpenSubKey("MatarotToolbar.Connect"); > return key != null; > } > > > It's return to me allways true, even I did uninstall to check it..any > idea?? > > I tried to write: > "MatarotToolbar.Conne" > Then, it's return false (Connect -- >Conne ). > if I uninstall the com add-in, this key is still in the Registry?? > > Thank's >