Interop.IWshRuntimeLibrary.dll is the library is an interop assembly of the IWshRuntimeLibrary and is recompiled by Stampede Technologies. The file Interop.IWshRuntimeLibrary.dll, re-signed by Stampede Technologies, is an Interop assembly that has been intergated by a 3rd-party into a .Net application, even though the assembly itself is most likely safe, it has been recompiled by a potentially unwanted program. Note, this is a common distributed file and although it has been detected it might not be a threat is un-coupled from its distribution source.