I get an error about the Direct X driver, then an unhandled exception dialog:

See the end of this message for details on invoking
just-in-time (JIT) debugging instead of this dialog box.

Exception Text
System.NullReferenceException: Object reference not set to an instance of an object.
at Sharp80.SoundX.<Dispose>d__57.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.CompilerServices.AsyncMethodBuilderCore.<>c.<ThrowAsync>b__6_0(Object state)

Loaded Assemblies
mscorlib
Assembly Version: 4.0.0.0
Win32 Version: 4.6.1087.0 built by: NETFXREL4STAGE
CodeBase: file:///C:/Windows/Microsoft.NET/Framework64/v4.0.30319/mscorlib.dll
----------------------------------------
Sharp80
Assembly Version: 1.1.0.87
Win32 Version: 1.1.0.87
CodeBase: file:///C:/Program%20Files%20(x86)/Sharp80/sharp80.exe
----------------------------------------
System.Windows.Forms
Assembly Version: 4.0.0.0
Win32 Version: 4.6.1087.0 built by: NETFXREL4STAGE
CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Windows.Forms/v4.0_4.0.0.0__b77a5c561934e089/System.Windows.Forms.dll
----------------------------------------
System
Assembly Version: 4.0.0.0
Win32 Version: 4.6.1087.0 built by: NETFXREL4STAGE
CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System/v4.0_4.0.0.0__b77a5c561934e089/System.dll
----------------------------------------
System.Drawing
Assembly Version: 4.0.0.0
Win32 Version: 4.6.1087.0 built by: NETFXREL4STAGE
CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Drawing/v4.0_4.0.0.0__b03f5f7f11d50a3a/System.Drawing.dll
----------------------------------------
SharpDX
Assembly Version: 3.1.0.0
Win32 Version: 3.1.0
CodeBase: file:///C:/Program%20Files%20(x86)/Sharp80/SharpDX.DLL
----------------------------------------
System.Runtime
Assembly Version: 4.0.0.0
Win32 Version: 4.6.1087.0
CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Runtime/v4.0_4.0.0.0__b03f5f7f11d50a3a/System.Runtime.dll
----------------------------------------
SharpDX.DXGI
Assembly Version: 3.1.0.0
Win32 Version: 3.1.0
CodeBase: file:///C:/Program%20Files%20(x86)/Sharp80/SharpDX.DXGI.DLL
----------------------------------------
SharpDX.Direct2D1
Assembly Version: 3.1.0.0
Win32 Version: 3.1.0
CodeBase: file:///C:/Program%20Files%20(x86)/Sharp80/SharpDX.Direct2D1.DLL
----------------------------------------
SharpDX.DirectInput
Assembly Version: 3.1.0.0
Win32 Version: 3.1.0
CodeBase: file:///C:/Program%20Files%20(x86)/Sharp80/SharpDX.DirectInput.DLL
----------------------------------------
System.Threading
Assembly Version: 4.0.0.0
Win32 Version: 4.6.1087.0
CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Threading/v4.0_4.0.0.0__b03f5f7f11d50a3a/System.Threading.dll
----------------------------------------
System.Collections
Assembly Version: 4.0.0.0
Win32 Version: 4.6.1087.0
CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Collections/v4.0_4.0.0.0__b03f5f7f11d50a3a/System.Collections.dll
----------------------------------------
System.Reflection
Assembly Version: 4.0.0.0
Win32 Version: 4.6.1087.0
CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Reflection/v4.0_4.0.0.0__b03f5f7f11d50a3a/System.Reflection.dll
----------------------------------------
System.Configuration
Assembly Version: 4.0.0.0
Win32 Version: 4.6.1087.0 built by: NETFXREL4STAGE
CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Configuration/v4.0_4.0.0.0__b03f5f7f11d50a3a/System.Configuration.dll
----------------------------------------
System.Core
Assembly Version: 4.0.0.0
Win32 Version: 4.6.1087.0 built by: NETFXREL4STAGE
CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Core/v4.0_4.0.0.0__b77a5c561934e089/System.Core.dll
----------------------------------------
System.Xml
Assembly Version: 4.0.0.0
Win32 Version: 4.6.1087.0 built by: NETFXREL4STAGE
CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Xml/v4.0_4.0.0.0__b77a5c561934e089/System.Xml.dll
----------------------------------------
SharpDX.Direct3D10
Assembly Version: 3.1.0.0
Win32 Version: 3.1.0
CodeBase: file:///C:/Program%20Files%20(x86)/Sharp80/SharpDX.Direct3D10.DLL
----------------------------------------
SharpDX.Mathematics
Assembly Version: 3.1.0.0
Win32 Version: 3.1.0
CodeBase: file:///C:/Program%20Files%20(x86)/Sharp80/SharpDX.Mathematics.DLL
----------------------------------------
System.Runtime.InteropServices
Assembly Version: 4.0.0.0
Win32 Version: 4.6.1087.0
CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Runtime.InteropServices/v4.0_4.0.0.0__b03f5f7f11d50a3a/System.Runtime.InteropServices.dll
----------------------------------------
System.IO
Assembly Version: 4.0.0.0
Win32 Version: 4.6.1087.0
CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.IO/v4.0_4.0.0.0__b03f5f7f11d50a3a/System.IO.dll
----------------------------------------
System.ValueTuple
Assembly Version: 4.0.1.0
Win32 Version: 4.6.24705.01
CodeBase: file:///C:/Program%20Files%20(x86)/Sharp80/System.ValueTuple.DLL
----------------------------------------
SharpDX.XAudio2
Assembly Version: 3.1.0.0
Win32 Version: 3.1.0
CodeBase: file:///C:/Program%20Files%20(x86)/Sharp80/SharpDX.XAudio2.DLL
----------------------------------------

JIT Debugging
To enable just-in-time (JIT) debugging, the .config file for this
application or computer (machine.config) must have the
jitDebugging value set in the system.windows.forms section.
The application must also be compiled with debugging
enabled.

For example:

<configuration>
<system.windows.forms jitDebugging="true" />
</configuration>

When JIT debugging is enabled, any unhandled exception
will be sent to the JIT debugger registered on the computer
rather than be handled by this dialog box.

So... needs work : ) It does seem to run after that, though.

I'll try it at home on a different PC.

I am trying to run the DirectX installer. That seems like a really old installer -- 2010. I'll see if that fixes the startup error though.

My first computer was a Model I with 4K and Level 1 BASIC. I'd love to get this working. I'd love it more if I could make it emulate a Model 1 with Level 1 BASIC so my kids could try working through the original TRS-80 BASIC programming book like I did in 1977.

I have tried some other emulators recently and had no luck.