Can you do a seek from the beginning for (Length - 128)?
Odd that seeking from the end is unimplemented; it maps directly from the native API to the managed one. Of course, you could just write the native code yourself I guess, or use the NativeIO_Mango library (see my Root Webserver link in my sig; it contains the library and source code). I'm pretty sure Seek is implemented correctly there, although I've never tried it from the end. If not, well, you have the source...
Odd that seeking from the end is unimplemented; it maps directly from the native API to the managed one. Of course, you could just write the native code yourself I guess, or use the NativeIO_Mango library (see my Root Webserver link in my sig; it contains the library and source code). I'm pretty sure Seek is implemented correctly there, although I've never tried it from the end. If not, well, you have the source...