Hey there...
I wanted to install the Bonuspack 4 (as far as i know there just is Bonuspack 2 in the GotY Edition) but somehow .umod files are not connected with the game. On the website is says "Install the latest patch" but you game is already at the latest patch right?
So any ideas what to do?
btw. the Bonuspack can be downloaded here:
http://download.beyondunreal.com/fileworks.php/official/ut/utbonuspack4.zip

ah well, not really a solution, but a workaround i just found.
there is an installer tool for umod files, here:
http://download.beyondunreal.com/fileworks.php/modsquad/unreal_tournament//utilities/umodt-19b2.zip

Open the game, and look in the corners when you have the UT GUI up. I think top right or bottom right shows the version number. 436 is the latest. If it's not that, and you can't patch it with the regular 436 patch, you could try the no delta patch, IIRC, I think I had to do that with a GOTY CD install years ago to either patch it to 436, or make it so that I could patch it to 436.
If you cant get a umod file to open correctly, what I do is to right click on it > Open With... > Choose Program > Browse ... > (find and click on Setup.exe within the UnrealTournementSystem directory) > Open (if you didn't double click setup.exe) > CHECK always use the selected program to open this file > Ok.
That puts me into the start of the UMOD screen.
Check out the DirectX8 Renderer for better gameplay.

Hey i got the exact same problem...but with UT2004. I tried opening it with the setup.exe but all i got was an critical error.
So with what program should i open the ut4mod file?

Instructions!
After doing that, you should just be able to double-click the ut4mod file to install the mod.
The same thing goes for UT umod files. Just substitute umod for ut4mod, and the UT2004 setup.exe with the one from UT.

Thx for the help. that worked.

Hi!
I'd like to install Hungarian dub to the GOG GOTY edition of the game but I couldn't. It contains 8 .umod files. I put the files into the system folder and tried to install with setup.exe, only game uninstall option appeared. I tried to "manually" open the files with the setup.exe: critical error: 'Setup: Unknown disposition. History: USetupDefinition::Ini < - WFilerWizard::WFilerWizard < - Setup'
Is there any solution yet, to install umod files?

Edit: The Support sent me this [url=http://wiki.beyondunreal.com/Legacy:UMOD/Problems ]link[/url]. With the 'Registry Fix Tool' I was able to install the .umod files.

If all else fails.Google Unreal Service Umod Tool.It supports ALL Umods (including UnrealGolds) and acts more like a zip file structure.You can even set it to ignore version warnings (Blank Mod requires Unreal Tournament version Blahblahblah.) which comes in handy.