welcome to the notepad++ community @enamule-pathan
following guide is for notepad++ 32 bit only, version 7.6.2 and above.
please make sure you are on notepad++ 7.6.2. 32 bit, or download the updater or a portable version from here.

to install the Zen Coding - Python plugin, go to plugins > plugin admin.
then enter zen in the search bar and hit next, ass seen in the screenshot below.
select zen coding - python and hit install to install it.

screenshot:
Imgur

if you want to install the old 2011 zen coding NppScripting plugin, you have to do it manually:
download the Zen.Coding-Notepad++.v0.7.zip from the google code archive.
extract it.
for the installed version of notepad++, copy the NppScripting folder to %ProgramData%\Notepad++\plugins\
then copy the NppScripting.dll to %ProgramData%\Notepad++\plugins\ NppScripting
(for the portable version it should go to npp.7.6.2.bin\plugins\NppScripting)

Thanks @dinkumoil - I’ve updated the existing issue and created new Issue #10 for the ZIP file problem. I guess we can consider this thread closed, except insofar as it might help future plugin developers reach the issues if/when appropriate (I, for one, did not know that the relevant GitHub project was https://github.com/notepad-plus-plus/wingup).

@donho

if you wish a simpler solution, that does not compromise your currently implemented security to others than to the concerning enterprises, you could make it possible to use an alternative nppPluginList.json in %PROGRAMDATA%\Notepad++\plugins\Config instead of the default nppPluginList.dll under the following condition.

this must be accompanied by a clearly perceptible (disclaimer) warning confirm box (cancel, ok) that displays a warning like:
“Warning: you are about to install/uninstall Plugins from a custom 3rd party source.
please verify this source before you continue.”
which should be triggered each time someone starts plugins admin, then also each time someone tries to install a plugin in plugins admin, and each time if someone tries to uninstall a plugin.

btw: it does not have to be a json, it could also be an unsigned nppPluginList.dll with an embedded 256.
and now that i mentioned “unsigned dll”:
currently a tempered nppPluginList.dll will just show an empty plugins list.
a good idea would be to check for that too, so you have 3 cases:

nppPluginList.dll is signed by you >
default behaviour as it is now nppPluginList.dll is unsigned >
show disclaimer warning nppPluginList.dll is signed by you but tempered (invalid certificate) >
cease operation, issue an alert window and exit plugins manager

alternative solutions need more work for each enterprise request.

pm. me if you like

@lutz

afaik this is a newer version/implementation https://github.com/kbilsted/NotepadPlusPlusPluginPack.Net

@donho

The question is: Is Notepad++ able to load autocompletion files from another location than <NPP_INST>\autoCompletion? If not, plugins will not be able to store their own autocompletion files to user’s machines. Thus this location would be wrong.

@gurikbal-singh RESOLVED: I tried to find out if any of the plug-ins all of sudden started to tamper with anything so I removed them (almost) all from the folder – and yes, after NPP restart, I saw the console and JSLint working. So I started to add all of the plug-ins back by one or two at a time and found out that actually none of the plugins I use tamper with anything and what I had is some obscure glitch that probably had something to do with window position of certain plugins or something like that.

If this glitch had to do with some weird window positions (not sure, but it is likely), then can we ask the developer(s) to add something alike to “Cascade windows” function from the good old days? Not literally that, of course, as we are dealing not with tabs/windows for files open, but with auxiliary windows/consoles that can just go away to somewhere.

Thanks for you help.

that worked.
thanks very much.

@Eko-palypse
dialog is dialog after all
form can perform as dialog by code this.dialog.show();
but i’m used this.show();