Custom pk4 files don't work anymore under Windows 8

[Tetzlaff]

I just got my new computer with Windows 8 and installed Doom3. On my old system (Windows XP) I created sound replacement mods for the game and used many custom textures for the levels I am working on.

Now none of the .pk4 files with textures or sounds work anymore in the game.

I created the .pk4 files with 7Zip, just like before. With 7Zip I can open the stock .pk4 files from the game just fine. I don't know what the problem is.

Can anyone help me?

[Avoozl]

Maybe the problem resides with 7zip? Are you creating the PK4's from regular zip files?

[Tetzlaff]

You are right, it had something to do with 7Zip... I now created the zip files with the regular Windows function and renamed them to .pk4, and they work.

Thanks for your help!