Have for forgot to say: for windows

Amazingly DOShack 0.3 still works with latest Windows if you install a very old 32-bit (i586) version of Java 1.5: http://www.oracle.com/technetwork/java/javasebusiness/downloads/java-archive-downloads-javase5-419410.html#jre-1.5.0_22-oth-JPR

Here's an example of external program launch with parameters:

cmd.exe /c start /max notepad.exe

Thank you for answering!

can you explan how install the extention and how to use it? i'am still a beginner, not yet work with extentions. Can I use it with 32-bit version of max only?

Yes, only 32-bit.

1. Install 32-bit Java 1.5 2. Copy the two *.class files to C:/Program Files (x86)/Cycling '74/Max 7/resources/packages/max-mxj/java-classes/classes 3. Open the DOSHack.help file and see if the various examples work, checking the Max console at beginning to ensure Java loads correctly as well

Any idea what to send to DOShack to open another application I have installed like for example the one I have installed at C:\Program Files\7-Zip\7zFM.exe ?

You should once decide what to use, shell, DOShack, or ; max launchbrowser or to write cmd script and execute it from max Windows path and shell are different than in mac, for DOShack this should work "C:\\Program Files\\7-Zip\\7zFM.exe"