I had this happen about a year and a half ago with an application I wrote in 2009. Finally got them to allow me to rewrite everything in C#, allowing me to keep

I had this happen about a year and a half ago with an application I wrote in 2009. Finally got them to allow me to rewrite everything in C#, allowing me to keep up to date on security vulnerabilities and performance improvements, without having to do much but run through a series of tests when a NuGet package or .NET version upgrade is released. NuGet with current .NET is a far different beast now, than when you used .NET Framework and plenty of XML assembly binding.