@pprkgraphiks hi 
I’ve encountered the same issue
I found that the reason the process doesn’t launch is in second parameter parms
You sending nullptr, if you replace it with TEXT("") it should work
So in your case the solution would
FPlatformProcess::CreateProc(TEXT("C:\\Program Files (x86)\\wlauncher\wlauncher.exe"), TEXT(""), true, false, false, nullptr, 0, nullptr, nullptr);