@PSET

#1
@PSET is a variable function from the SYSUTILS plugin, available from;

https://jpsoft.com/all-downloads/plugins-take-command.html

I am using the 64-bit version of SYSUTILS, as I am using the 64-bit version of both TCC and Powershell.

From the SYSUTILS.TXT file,
Code:
@PSET

@PSET[pid,var[=[value]]]

get[unset[set]] variable in process <pid>

returns value (get/set) or var (unset) on success, else an empty string
Here is how to create, from TCC, an environment variable in Powershell.

The version of TCC I am using is;
Code:
TCC  18.00.32 x64   Windows 7 [Version 6.1.7601]
TCC Build 32   Windows 7 Build 7601  Service Pack 1
The version of Powershell I am using is;
Code:
$PSVersionTable

Name                           Value
----                           -----
PSVersion                      5.1.14409.1005
PSEdition                      Desktop
PSCompatibleVersions           {1.0, 2.0, 3.0, 4.0...}
BuildVersion                   10.0.14409.1005
CLRVersion                     4.0.30319.42000
WSManStackVersion              3.0
PSRemotingProtocolVersion      2.3
SerializationVersion           1.1.0.1
From 64-bit TCC, load the plugin;
Code:
plugin /l sysutils64.dll
Find the PID of powershell. Note well that I have only 1 copy of Powershell active.
Code:
set thepid=%@pid[powershell.exe]
Place the environment variable into Powershell;
Code:
echo %@pset[%thepid,mydate=%_isodate]
Did it work? In Powershell, examine the variable;
Code:
get-item env:mydate

Name                           Value
----                           -----
mydate                         2017-10-02
In Powershell, change the variable;
Code:
$env:mydate = "2017-11-02"
Did it work? Let's verify;
Code:
get-item env:mydate

Name                           Value
----                           -----
mydate                         2017-11-02
Back in TCC, get the variable we changed in Powershell;
Code:
echo %@pset[%thepid,mydate]

2017-11-02
What can this be used for? Well, my first thought is interprocess communication, that is, sharing data between applications. YMMV

Joe