RTC-SCM-CLI: what is the right way to launch lscm.bat from a C#.NET wrapper tool (running in windows)

Background:
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I'm building a wrapper tool (C# .net) around the RTC SCM CLI
This wrapper tool is a GUI application with some set of menu commands like "Login to RTC", "Load Component" etc., This wrapper tool internally calls lscm.bat (from RTC-scmTools-Win-4.0.3 installation)

On click of every menu command (RTC specific), the wrapper tool launches "lscm.bat" in a new process with appropriate CLI arguments for that command. Find below the C# code:
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            ProcessStartInfo processStartInfo = new ProcessStartInfo(BatchFilePath, CmdLine);
            processStartInfo.CreateNoWindow = true;
            processStartInfo.UseShellExecute = false;
            processStartInfo.RedirectStandardOutput = true;
            processStartInfo.RedirectStandardError = true;
            System.Diagnostics.Process process = System.Diagnostics.Process.Start(processStartInfo);
            StreamReader StdOutReader = process.StandardOutput;
            StreamReader StdErrReader = process.StandardError;           
            process.WaitForExit();
            string StdOutMessage = StdOutReader.ReadToEnd();
            string StdErrMessage = StdErrReader.ReadToEnd();
            int ExitCode = process.ExitCode;
            StdOutReader.Close();
            StdErrReader.Close();
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As shown in the code above, the wrapper tool captures the STDOUT and STDERR streams of lscm.bat for its own processing and display.

Problem:
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1. The wrapper tool with the above code was working fine for the below commands
- login
- list components
- create changeset
- checkin
- logout

2. Then, I executed the command

load -r <server> -d <RootDir> -f <workspace> <ComponentName>

=> I waited for about 10 mins, but the command did not return at all.
It looked like the command was hanging. So I opened Task manager and killed "scm.exe". Now the command returned immediately.

3. I closed the wrapper tool. Restarted it. And now, every RTC SCM CLI command that I'm executing (eg, login command) doesn't return at all. If I explicitly kill the scm.exe then the command returns immediately.

Summary
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1. For every command triggered by the user in the wrapper tool, it is launching the lscm.bat in a separate process. Is this the right way to launch the lscm.bat ? Or is there a better approach available ?
2. What could be the reason behind the scm cli commands not returning ? (Please note that if I launch scm.exe instead of lscm.bat, then this issue doesn't occur)
3. Can you share some documentation on how this lscm.bat/scm.exe/fec.exe work together internally ? (I'm reading that lscm.bat will start scm.exe as a daemon but I couldn't find anything in windows services list. I could only find scm.exe running as a process in Task manager.)

Thanks for your help in advance.