Need Some Help

"Xkas is not recognized as an internal or external command, operable program or batch file."

You have to be in the folder where is xkas, the ROM and the asm file, not the default "C:\users\username" or whatever default your OS has. Also it will be "xkas" and not "Xkas". This is the easiest way, otherwise you can specify the full path of all 3 components, as an example "C:\some\path\xkas C:\patches\sketch.asm D:\rom\path\romname.smc".

Edit: I made an IPS patch for unheadered ROM:

 sketch.zip (164 bytes, 4 downloads)