Problem with Auran patcher

[FinnishDevelopers]

Hello, while loading the auran patcher for TRS09 SP1 I get the following message:

File error while reading patch data.
No valid patch operation was specified. Patching aborted.

I've redownloaded the update without success. Trainz 09 was also freshly installed before the attempt of update.

I am using Windows XP SP3.

 

[j_maybury]

Did you remember to turn off your virus/firewall checker

 

[FinnishDevelopers]

Yes, I tried it with Windows Firewall and Zonealarm shutdown with exactly same results. Could the problem in connection be the fault in this case?

 

[j_maybury]

Could the problem in connection be the fault in this case?

When you downloaded SP1, did it say that the download was sucsesfull?

 

[FinnishDevelopers]

Solved

I had downloaded it three times with builtin download manager of Firefox but became skeptical and downloaded it fourth time with another download manager and it now works fine, thanks.