Process in C# with Windows Service Account

Question

Hi,
   I would like to launch SQL Server Management Studio from C# Process Class thru windows service account. When I start the process, I got the in Win32Exception ( “Logon failure: unknown user name or bad password”). I verified the User credentials
as well. Please let me if you have any idea on this issue.
Code:
private
void cmdSqlServer2012_Click(object sender,
EventArgs e)
Process objProcess =
null;
ProcessStartInfo objProcessStart =
null;
string strSqlServer =
@"C:\Program Files (x86)\Microsoft SQL Server\110\Tools\Binn\ManagementStudio\Ssms.exe";
//string strSqlServer = "ssms.exe";
string strUserID = ConfigurationManager.AppSettings["UserID"];
string strUserPwd = ConfigurationManager.AppSettings["Password"];
try
                objProcess =
new Process();
                objProcess.StartInfo.LoadUserProfile =
false;
                objProcess.StartInfo.FileName = strSqlServer;
                objProcess.StartInfo.UseShellExecute =
false;
                objProcess.StartInfo.UserName =
"Senthil.Krishnamoort";
                objProcess.StartInfo.Domain =
"Services";
                objProcess.StartInfo.Password = ConvertToSecureString(strUserPwd);
objProcess.Start();
catch (Win32Exception w32E)
// The process didn't start.
MessageBox.Show(w32E.Message);
catch (Exception ex)
MessageBox.Show(ex.Message);
finally
                objProcess.Dispose();
                objProcess =
null;
public static
SecureString ConvertToSecureString(string password)
if (password == null)
throw new
ArgumentNullException("password");
SecureString secureString =
new SecureString();
foreach (char ch
in password)
                secureString.AppendChar(ch);
            secureString.MakeReadOnly();
return secureString;

Answer 1

Hi
Krish0609,
Firstly please try do the following steps
Service____rightclik___Propertise___Logon___allow service  to interact with desktop.
Secondly, from your code,  I would suggest you used
ProcessStartInfo.Arguments
Property
to  sets the set of command-line arguments to use when starting the application.
objProcess.StartInfo.Password = ConvertToSecureString(strUserPwd);
I doubt this issue maybe you have converted to secure string.
By the way, here is how to use SSMS command line.
Usage:
sqlwb.exe [-S server_name[\instance_name]] [-d database] [-U user] [-P password] [-E] [file_name[, file_name]] [/?]
[-S The name of the SQL Server instance to which to connect]
[-d The name of the SQL Server database to which to connect]
[-E] Use Windows Authentication to login to SQL Server
[-U The name of the SQL Server login with which to connect]
[-P The password associated with the login]
[file_name[, file_name]] names of files to load
[-nosplash] Supress splash screen
[/?] Displays this usage information
Please also refer to Bruce Prang's Blog
to learn more.
Best regards,
kristin
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