Here is a suggested workaround to this: the actual python scripts installed by the ATX Extension manager can be run through TA 17.5 directly: for instance get the RST packet finder that you mention TCP RST Finder this is a .opext.zip file:
*unzip to .opext.zip file => gives you the file rstfinder.110.opext
*rename rstfinder.110.opext to rstfinder.110.zip, then unzip => it builds a folder with a few files in it. You want the tcp_rst_finder.py script. You can run this script through TA console: "Advanced -> Run Script" and point to this tcp_rst_finder.py file:
And for the brave .. ( as in : not really supported ): you can even add a menu for your favorite scripts: here I added that same TCP rst finder script in the Advanced menu:
All you have to do is:
*copy the python script ( here tcp_rst_finder.py ) to the /sys/lib/ directory of TA 17.5
*edit the following file: /sys/config/ta_py_ops.ets as follows:
New section here for convenience:
operation: exec_function tcp_rst_finder ace_main
menu string: "Find RST Packets "
menu header: "Advanced:Example Scripts"
Now you just need to restart TA and the menu should show the name "Find RST Packets", and it should run that script ( main function of tcp_rst_finder )