NIST 14 error with MH Qual 7.000

Hi All, 

Recently installed QA and NIST 14 on a windows 11 pro OS. The QA program is working fine. I can basically do everything as per normal but as soon as I click "Search for Spectrum using NIST MS program", the following error comes us: 

Agilent MassHunter Workstation Software Qualitative Analysis encountered an error. The program will attempt to continue ignoring this error. However we recommend saving the data and restarting the program.
The log has been created at C:\temp\AgtErrorLogs.

I uninstalled both programs, deleted their folders in drive C and D and cleaned my registry files. Re did the installation but the error remains. 

Date and Time: 16/05/2022 11:37 AM
Program: Agilent MassHunter Workstation Software Qualitative Analysis B.07.00
Build Configuration: Release
Message: Compiler executable file csc.exe cannot be found.
Stack Trace:
Server stack trace:
at System.CodeDom.Compiler.RedistVersionInfo.GetCompilerPath(IDictionary`2 provOptions, String compilerExecutable)
at Microsoft.CSharp.CSharpCodeGenerator.FromFileBatch(CompilerParameters options, String[] fileNames)
at Microsoft.CSharp.CSharpCodeGenerator.FromDomBatch(CompilerParameters options, CodeCompileUnit[] ea)
at Microsoft.CSharp.CSharpCodeGenerator.System.CodeDom.Compiler.ICodeCompiler.CompileAssemblyFromDomBatch(CompilerParameters options, CodeCompileUnit[] ea)
at Agilent.MassSpectrometry.DataAnalysis.Qualitative.ScriptEngine.CompileAndRunScript(ScriptEngineParameters parameters)
at Agilent.MassSpectrometry.DataAnalysis.Qualitative.AppManager.BeginRun(String commandAssembly, String[] referenceAssemblies, Boolean debug, String language, TextReader scriptCode, QualScriptEnvironment qualScriptEnvironment)
at Agilent.MassSpectrometry.DataAnalysis.Qualitative.AppManager.RunScriptAdvanced(Boolean debug, String language, TextReader scriptCode, QualScriptEnvironment qualEnvironment, AssemblyName[] additionalReferences)
at Agilent.MassSpectrometry.DataAnalysis.Qualitative.QualCommandBase.RunScript(String script, QualScriptParameters scriptParams, ActionItemCollection actions)
at Agilent.MassSpectrometry.DataAnalysis.Qualitative.QualCommandBase.RunScripts(String[] scripts, QualScriptParameters scriptParams, ActionItemCollection actions)
at Agilent.MassSpectrometry.DataAnalysis.Qualitative.CmdRunScript.DoSpecialized()
at Agilent.MassSpectrometry.DataAnalysis.Qualitative.QualCommandBase.Do()
at Agilent.MassSpectrometry.CommandModel.CommandHistory.Invoke(ICommand cmd)
at System.Runtime.Remoting.Messaging.StackBuilderSink._PrivateProcessMessage(IntPtr md, Object[] args, Object server, Object[]& outArgs)
at System.Runtime.Remoting.Messaging.StackBuilderSink.AsyncProcessMessage(IMessage msg, IMessageSink replySink)

Exception rethrown at [0]:
at System.Runtime.Remoting.Proxies.RealProxy.EndInvokeHelper(Message reqMsg, Boolean bProxyCase)
at System.Runtime.Remoting.Proxies.RemotingProxy.Invoke(Object NotUsed, MessageData& msgData)
at Agilent.MassSpectrometry.CommandModel.CommandHistory.InvokeCommand.EndInvoke(IAsyncResult result)
at Agilent.MassSpectrometry.DataAnalysis.Qualitative.AppManager.EndInvoke(IAsyncResult result)
at Agilent.MassSpectrometry.DataAnalysis.Qualitative.QualForm.OnAsyncCallBack(IAsyncResult asyncResult)

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