13 solutions found
0X40000023 You're trying to run a 64-bit executable on a 32-bit Windows install, or vice versa. This usually happens with old software or wrong installers....
0X00001B7B This error appears when a RemoteApp tries to switch to DOS graphics mode. Three fixes: disable DOS graphics in the app, tweak RDP settings, or patch t...
0X00000081 This error means a 16-bit program can't run in 32-bit Windows. It's a compatibility issue with older apps. The fix is enabling NTVDM or using a differ...
0XC000012E This error pops up when Windows tries to load a 16-bit LE-format executable. It's a dead end for 64-bit systems, but there's a workaround if you need ...
0X000000BC Happens when you try to run a 16-bit program on 64-bit Windows. The first bytes of the EXE are corrupted or it's an old DOS app....
0X00000251 This error pops up when you try running a 16-bit program on 64-bit Windows. The NTVDM can't handle it, so you get the hard error. Here's how to work a...
0X000000C8 Old 16-bit code hits a 64KB limit on modern Windows. Common with legacy DOS apps and drivers. I'll show you how to kill the junk causing it....
0X000000B4 This error means Windows tried to access a memory segment that doesn't exist. It usually happens during driver loading or memory corruption on older s...
0X000000BE Happens when you try to run a 64-bit program on a 32-bit Windows, or a corrupt .dll file. The real fix is using the right version or reinstalling....
0X00000506 This error means Windows blocked a 16-bit app. You're running 64-bit Windows, which dropped NTVDM. Here's how to get around it....
0X00000098 This error means DosMuxSemWait hit a semaphore limit — usually from old apps or misconfigured services. Here's the direct fix....
0XC000011B This error means Windows can't run an old 16-bit NE executable. Quick fix: use a 32-bit wrapper or NTVDM. Real cause: 64-bit Windows drops support for...
0XC000021D NTVDM error 0XC000021D hits when trying to run 16-bit apps on 64-bit Windows. This guide walks through the real fix—configuring Windows features and p...