downloaded belzebub put in new folder. copyed diabdat mpq.put in bezebub folder it wont work.then copyed diablo game and put in folder still wont work.

Could be you're missing OpenAL? See the installation instructions for Belzebub mod here: https://mod.diablo.noktis.pl/features

it say mscvr100dll not found error message.i have Microsoft visual c 2013 do I need 2010 microft visual.

I'm really not sure. I'm actually running it on Linux via WINE and I didn't get that complaint. But, yes, quite likely you need that specific VC redist.

Yes, the requirements for Belzebub state that Microsoft Visual C++ 2010 Redistributable is required.

It is normal to have multiple Visual C++ redistributables installed. I have 2005, 2008, 2010, 2012, 2013 and 2017 installed, and with both x86 (32-bit) and x64 (64-bit) versions.

its working now

I get the same error message you got. Can you tell me how you made it work? I downloaded what you had mentioned above and installed that. Tried running teh belzebub mod with the DIABDAT.MPQ pasted in the belzebub folder but I still et the same message. I don't know what I'm doing so any step by step help would really be appreciated.

Does DIABDAT,MPQ go in the game data folder of Belezebub with the rest of the MPQ files ? Thanks

My Belzebub installation has it alongside the executable, not in a subfolder.

Thank You. I've never played any of the Diablo Games. I like this type of game though and since it's playable at high rez with this mod I will try it out.
Any other sugestion on the install of this mod?

Really I just extracted Belzebub into my Diablo installation and it worked fine. It is a nice mod in that you can play at a higher resolution, but it changes elements of the game (like the Butcher encounter). I'm currently using DevilutionX as that gives a vanilla gameplay, but the standard DevilutionX build lacks quality of life improvements.

Thanks for the info. I will buy it soon.

OK I got diablo and belezbub it starts in a window. How to go full screen or edit what files? Thanks

I got ir you have to go into the game to change the settings. The GOG release have HD support now it seems.

I have the cheat engine with spellbook but can't get any of the stats to change. Is there a guide somewhere that fully explain's how to use the spellbook? I have tried youtube but the direction's are really unhelpfull, the same with any searches on google.

there's no guide and there will never be, cheating is for losers