Patch 1.09b is download only, not an automatic battle.net update. Fixed sound problem with Windows NT 4. Diablo II Diablo III Public client builds. Download DiabloPatch 2.1.0 (2018-06-15, 73 KB) SHA1: 0eed3c2d1e9911f49926f375ff41f97f768adcef. First, make sure you have Diablo 1.09. I too am having this issue. I have a laptop with no cd drive. I have made an iso copy of my diablo disk and have installed daemon tools lie on my laptop. I have run the iso using daemon tools and managed to install diablo, and have applied the patch so I am using version 1.09b (downloaded from Blizzard's official site).
Diablo v1.09 ENGLISH No-CD/BNET/FSGS Loader. Some No-CD/Fixed EXE files work fine in Single Player mode but are detected to be modified when trying to play.
PC GAME FIXES |
Diablo
Search for related No-CD & No-DVD Patch
No-CD & No-DVD Patch troubleshooting: The most common problem getting a No-CD/No-DVD patch to work is ensuring that the No-CD/No-DVD patch matches you're game version, because the games exe is changed when a patch update is applied previous versions won't work.
If its an older game you are playing and you are running Windows 7 or Windows 8 it may not work, if you right click the .exe file and choose Properties and then Compatibility you can change this to run in Windows 98/ Windows 2000 etc. You can find more information on the Beginners Help page here