Debug and investigate issue with WMI classes in C#

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C#

.NET

Visual-Studio

.NET4.5

I am trying to execute one simple exe from my machine to remote computer.
Both machines are on same network/domain. I have proper credentials of that machine, but when i run below code the ReturnValue property is always 3 which is an error.

ManagementPath p = new ManagementPath("Win32_Product");
ManagementClass classInstance = new ManagementClass(scope, p, null);
ManagementBaseObject inParams = classInstance.GetMethodParameters("Install"); 
inParams["AllUsers"] = true;
inParams["Options"] = string.Empty;
inParams["PackageLocation"] = "E:\\Softwares\\setup.exe"; 
ManagementBaseObject outParams = classInstance.InvokeMethod("Install", inParams, null); 
string retVal = outParams["ReturnValue"].ToString(); //This always returns 3

Need help in finding what the error is. I am new to WMI classes and don't know where to look for it, any guidance would be much appreciated.
Both machines are running on windows 7 and both have same configuration.

Regards,
Sujay