ClearAll[CreateVar, ImportConfig];
CreateVar[x_, y_String: "True"] := Module[{},
  If[StringFreeQ[y, ","]
   ,
   ToExpression[x <> "=" <> y]
   ,
   ToExpression[x <> "={" <> StringJoin@Riffle[StringSplit[y, ","], ","] <> "}"]
   ]
  ]
ImportConfig[configfile_String] := Module[{data},
  (*data = ImportString[configfile, "List", "Numeric" -> False];*)
  data=Import[configfile,"List","Numeric"\[Rule]False];

  data = StringTrim /@ data;
  data = Select[data, # =!= "" &];
  data = Select[data, ! StringMatchQ[#, "#" | ";" ~~ ___] &];
  data = If[! StringFreeQ[#, " "], StringSplit[#, " ", 2], {#}] & /@ data;

  CreateVar @@@ data;
 ]
ImportConfig[file]