Hello.

To be able to use PKUNZIP outside of C:\OLDGAMES you should add that directory into to the PATH environment variable. In this case it should be the following:

1SET PATH=C:\OLDGAMES;%PATH%

%PATH% is to keep the original PATH environment variable intact while adding the new directory and I recommend adding this line in DOSBox configuration file on the [autoexec] section so you don't have to type this each time when starting DOSBox.

Adding pkunzip to the path is of course the way to go with such a utility that you use often.

Generally speaking, you can also specify the full location of a program to run it from a different location, for example
C:\DOOM> C:\OLDGAMES\PKUNZIP.EXE ...

Why not just use Winzip or a similar program for Windows?

Peter Swinkels wrote on 2021-10-30, 09:40:

Why not just use Winzip or a similar program for Windows?

I was also thinking the same, but looks like the OP wants to learn doing it within DOSBox.

There's also 7zip for DOS if you want to use something current that you'd also potentially likely use on a modern OS if/when you didn't want to use a GUI
7-Zip Benchmark, DOS Edition

http://infozip.sourceforge.net/

Best DOS zip utility by far

konc wrote on 2021-10-30, 08:01:

Adding pkunzip to the path is of course the way to go with such a utility that you use often.

Generally speaking, you can also specify the full location of a program to run it from a different location, for example
C:\DOOM> C:\OLDGAMES\PKUNZIP.EXE ...

Thank you finally got the hang of it not that I think I will use it that much as I find it way easier to use 7 zipper and extract the files straight to the folder but it is nice to know how to do these things as my first PC was a Windows 98 PC so I never got to use Dos .