Thoughts? I am already using latest version?

[PCAssistSoftware]

de4dotEx v3.2.4.0

Detected .NET Reactor (C:\Users\darre\Downloads\Assist.exe)
Cleaning C:\Users\darre\Downloads\Assist.exe
ERROR:
ERROR:
ERROR:
ERROR: Hmmmm... something didn't work. Try the latest version.

[meck-gd]

The message is a bit misleading, it's always shown when an exception occurs. Try doing set STACKTRACE=1 (if using cmd), then you'll get more info about the error. I assume it'll be some failure in the dotNET_Reactor code.

I can't really help without having the binary, but compatibility with new .NET Reactor versions is spotty. Have you tried NETReactorSlayer?

[PCAssistSoftware]

Thanks for replying.

set stacktrace=1 didn't seem to show anything else so tried it with -V and output for info is below:

C:\Users\darre\Downloads\de4dotEx-3.2.4-net48>de4dot.exe "C:\Users\darre\Downloads\Assist.exe" -v

de4dotEx v3.2.4.0

1: Unknown
0: Agile.NET
0: Babel .NET
0: CodeFort
0: CodeVeil
0: CodeWall
Deobfuscating control flow: System.Void ::.cctor() (06000002)
Deobfuscating control flow: System.Void ::m8DE28F3F6D6F66B() (06000001)
0: Confuser
0: ConfuserEx
0: Crypto Obfuscator
Deobfuscating control flow: System.Void ::.cctor() (06000002)
0: DeepSea
0: Dotfuscator
0: .NET Reactor 3.x
Deobfuscating control flow: System.String AoIBWWlDJbaf7LijnA.oMu6jVbdhHEH79DDhU::iX38Xvt6D(System.Int32) (060004C8)
Deobfuscating control flow: System.Void PDF_Assist.My.MyApplication::Main(System.String[]) (0600000A)
Deobfuscating control flow: System.Void PDF_Assist.My.MyApplication::.cctor() (0600000E)
110: .NET Reactor 4.x
0: Eazfuscator.NET
0: Goliath.NET
0: ILProtector
0: MaxtoCode
0: MPRESS
0: Obfuscar
0: Phoenix Protector
0: RATMalware
0: Rummage
0: Skater .NET
0: SmartAssembly
0: Spices.Net
0: VirtualGuard
0: Xenocode
0: DoubleZero Obfuscator
Detected .NET Reactor (C:\Users\darre\Downloads\Assist.exe)
Cleaning C:\Users\darre\Downloads\Assist.exe
Deobfuscating control flow: System.Void AoIBWWlDJbaf7LijnA.oMu6jVbdhHEH79DDhU::qp1d5IbOJ() (060004CE)
ERROR:
ERROR:
ERROR:
ERROR: ------------------------------------------------------------------------------
ERROR: Stack trace:
ERROR: at de4dot.code.deobfuscators.dotNET_Reactor.v4.EncryptedResource.Initialize(ISimpleDeobfuscator simpleDeobfuscator)
ERROR: at de4dot.code.deobfuscators.dotNET_Reactor.v4.MethodsDecrypter.Decrypt(MyPEImage peImage, ISimpleDeobfuscator simpleDeobfuscator, DumpedMethods& dumpedMethods, Dictionary2 tokenToNativeCode, Boolean unpackedNativeFile) ERROR: at de4dot.code.deobfuscators.dotNET_Reactor.v4.Deobfuscator.GetDecryptedModule(Int32 count, Byte[]& newFileData, DumpedMethods& dumpedMethods) ERROR: at de4dot.code.ObfuscatedFile.Deobfuscate() ERROR: at de4dot.cui.FilesDeobfuscator.DeobfuscateAllFiles(IEnumerable1 allFiles)
ERROR: at de4dot.cui.FilesDeobfuscator.DeobfuscateAll()
ERROR: at de4dot.cui.FilesDeobfuscator.DoIt()
ERROR: at de4dot.cui.Program.Main(String[] args)
ERROR:
ERROR:
ERROR: Caught an exception:
ERROR:
ERROR: ------------------------------------------------------------------------------
ERROR: Message:
ERROR: Could not find resource decrypter key
ERROR: Type:
ERROR: System.ApplicationException
ERROR: ------------------------------------------------------------------------------
ERROR:
ERROR: Try the latest version!

thanks for the suggestion of NETReactorSlayer - this seemed to work