When Monarch launches, does it have the report and model open? If not, then it indicates that either the project is no longer working or the path to the projects is wrong. Does the project still work if you open it within Monarch?
[font="courier"]Monarch.exe "d:Program FilesMonarchModelsMy ProjectsSummary_by_Agent.prj" “d:Program FilesmonarchexportAgent_Report.xls" /s[/font][/quote]However, this will only export the summary that was active when the project was saved. To get the ability ot export multiple summaries and tables, along with appending to existing sheets and adding new sheets in an existing workbook, you will need to upgrade to V7 and use the Projects Export.