Someone

private void frmMain_Load(object sender, EventArgs e)
        {
            string vplocation;
            string defaultvp = Application.StartupPath + "default.vp1";
            if (File.Exists(defaultvp)){ 
                //if our default.vp1 exists, continue loading it
                vplocation = defaultvp;
            }
            else
            {
                //check if there is a arg[0] specified 
                if (argparams.Length > 1)
                {
                    if (File.Exists(Application.StartupPath + argparams[1]))
                    {
                        vplocation = Application.StartupPath + argparams[1];
                        //Environment.CurrentDirectory
                    }
                    else
                    {
                        //we couldnt find a default.vp1 or the file specified with args in our app.startuppath
                        //last resort, check if the full path is specified
                        if (File.Exists(argparams[1]))
                        {
                            vplocation = argparams[1];
                        }
                        else
                        {
                            //we cant find the vp scriptfile or there isnt any specified.
                            vpScriptnotfound();
                        }
                    }
                }
                else
                {
                    //we cant find the vp scriptfile or there isnt any specified.
                    vpScriptnotfound();
                }
            }    
            
        }