More than 1 output parameter in runner url call

Hi experts,

I am calling MII transactions using runner url

works fine with 1 output parameter like this:

http://<servername>:<port>/XMII/Runner?Transaction=<path of transaction/transaction name>&<input parameter name=value>&<OutputParameter=parameter name>

But now i need 3 OutputParameter, not 3 rows, there are multiple output fields.

What syntax can i use then? I have only seen examples for one with <OutputParameter=parameter name>, i ghess I need something like <OutputParameters=parameter_name1,parameter_name2,parameter_name3> but I cannot find exactly how.

Thanks a lot!!

Artur.