First off, make sure that you have the latest Half-Life and/or Steam updates installed on your system. "Poke646" has been developed on non-Steam Half-Life v1.1.0.8, "Poke646: Vendetta" has been developed on the Steam version of Half-Life. Due to our feedback mails, 99% of the "can't load client.dll" bugs could be eliminated simply by updating your Half-Life installation to the current version.
Another possibility (esp. when it asks for other files than the client.dll) is that you downloaded or installed a corrupt file and/or the installer hasn't copied all files properly to your harddrive. So please make sure your downloads have the exact byte counts (rightclick on the installer file and select "Properties"):
"poke646.exe" has 66.374.881 bytes.
"poke646_vendetta.exe" has 75.382.552 bytes.


