...
If you need multiple values, then format your parameter accordingly:
A As json, such as:
{ "path": "myfolder\\subfolder", "param2": "xyz" }- A
As semi-colon
separated
string:
"myfolder\subfolder; xyz"
Use Json.Net to parse json values. The Json.Net assembly does not need to be included with your package release, it is available to all extensions out of the box.