Sure, you could just link the file to them at
http://reaper.dkpsystem.com/files/GuildRaidSnapShot.zip . You could easily make a dynamic Menu item that points to that.
Deleting the GRSS file won't cause any harm at all. If you'll notice, there's a section in the Admin Menu called "View Previous Snapshots"
Finally, for the Majordomo bug, it's been fixed in the testing version and in just a few days will be deployed, so if you can hold out for a few more days, you won't have to deal with manually taking the domo snapshot anymore.
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The day Microsoft makes a product that doesn't suck is the day they make a vacuum cleaner.
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It's all in the reflexes.