Same problem. Have been searching for almost 2 weeks for for a solution. Very difficult.
I am very new to all things database and have never had this working, so I wasn't sure if I had set something up wrong or if this was a problem a lot of people had. And it seems to be the latter. I have to say a lot of similar posts have been left hanging so I haven't found a lot of support(I did see a moderator trying to help though TSGal I think). I have tried lots of things such as deleting certain preference files, turning on and off my firewal and updating to FMS11 and still no luck. Also on the database that I am wanting to publish, I am having the error "Web publishing cannot share files because IWP cannot be started" or something like that. So I'm having a two fold problem. (Maybe related, not sure)
I am running OSX 10.5.8 Have a local copy of FMP10. the database is actually on a remote server which is running Snow Leopard and FMS11.
If there is need for anymore information please please ask me for it. I want to resolve this issue as quickly as possible! Thank You In Advance!!
I got the same error message, except mine is with a negative 150, if that matters:
"Deployment/Configuration error -150 Starting the WPE(wpe1) component failed: error code = 2504"
I've been successfully running FileMaker Server Advanced 10, including IWP, for a year or so and last night tried to update to FMS 11. Each attempt resulted in that error message above, even after uninstallation and reinstallation, and even after the recent 11v2 mini update was installed. I went back to FMS 10 for now.
edit: This is on Mac OS X Server 10.5.8.