Thanks Nimesh for answering. 😄
Any kind of linguistic chars such as ñ,ç,ö....
As additional info the imput parameter of the GP Task is:
From ArcGIS Server
Parameter: Info_collection
Data Type: GPString
Display Name: Info collection
Direction: esriGPParameterDirectionInput
Default Value:
Parameter Type: esriGPParameterTypeOptional
Best
Alberto