i have mame set up in a root folder (c:\mamed) with source and u-updates along with the patch.exe all in this folder. I open up a dos window and go to the c:\mamed folder then once there I type patch -p0 -E <0145u1.diff and enter in the dos window and it jus opens up a another dos window named c:\mamed\patch.exe.
funny thing is I made a batch file to make mame and its jus a simple batch file and when i use it it jus goes into an open loop thru the dos window. but i downloaded a make batch file from mr.do's and it works. if I just rename mr.do's make batch file it does the same thing, just an open loop with the following C:\mingw\mingw64-w64\bin then opens another prompt c:\make then opens another prompt and starts the process all over again. then if i change the name of the make.bat file back it works fine. dont know why its giving me all this trouble !