In this repository you can find my Borderlands 1 Plugin(s).
So far there is only ONE. And that is a SanityCheck Bypass, which also is only for the non-"Enhanced" version of BL1.
First, download the archive from here.
If you're familiar with my other PluginLoader, it works exactly the same.
In this case, the PluginLoader requires two files. Make sure libresample.dll and libresample_org.dll are in the Binaries-folder. This is right next to the Borderlands.exe. Do NOT rename either of them.
After that, make sure the Plugins folder is also in the Binaries-folder.
TLDR: Drag & Drop the files from the archive next to your Borderlands.exe. If you're being asked about overwriting "libresample.dll" then confirm.
If it doesn't work for you, make sure you have this vcredist_x86 installed. Yes x86 is correct, even if you are on a x64 system/OS.