Hello,
Yes, it is possible to pass parameter to an exe. It is available with Automation Anywhere Server 6.0.4.
Please find below the instructions to run exes with command line arguments.
Syntax: /AAServerMgr /var$variablename1$=variablevalue1;$variablename2$= variablevalue2
For e.g. "C:\Automation Exes\Verizon.exe" /AAServerMgr /var$usrnm$=automation;$passwd$=anywhere
In above example $usrnm$ & $passwd$ are value type variables.
Please note:
There is no space between this command-line argument and its value type variable as shown in example. The variables are separated by semi-colon (

.
You will need to define these value type variables first in the task and then you can use them in the command line.
Hope that helps.