n00b question -- checking Winamp activation method

[AnotherXoltan]

Hey, I'm new to Winamp plugin creation. I've been bashing together, making my plugin and just ran into a serious logic error. I need to know how Winamp is activated to take the appropriate action. If Winamp is activated normally (just opening winamp.exe, no arguments), the plugin should be active. If, however, the user activates winamp with any arguments (ie. double clicking on an music file or playlist), the plugin should not do anything. I'm not sure if any of the WM_COMMAND or WM_USER variables I can toss at it will tell me this or not. I appriciate any ideas or suggestions and thanks in advance.

[ VC++6.0 on a Win2K box with Winamp v5.05 loaded ]