How can I store the Dot-net exe return value in TDL Variable

Hi All,
I want a help, how to store the return value from Dot-net exe.
I will call the exe using Exec Command, In this case How can I store the exe return value.


Example.
[#Menu : Gate Way of Tally]
Add : button : Tally Notepad
[Button : Tally Notepad]
Key : ALT + T
Action : Exec Command : Test.exe

In this example the Test.exe return some values,
How can I store this value in TDL variable OR How can I set the value into TDL variable.
Please help me.

 

Dear admin,

Sorry sir, I don't understand here. write DLL functions means, can I write a new DLL function in Dot-Net or write a function in TDL.
Please give me a example for this.