[*]Under the CD-ROM drive's properties in Device Manager, I made sure that the "Auto Insert Notification" box is checked. Ooops, in my previous posts I completely forgot about autorun, there is another possible cause for it to fail even if "Auto Insert Notification" is enabled, ...

:idea: To remove all devices from device manager at once and without having to reboot a bunch of times use the registry editor to go to: HKEY_LOCAL_MACHINE\ And delete the "enum" subkey, then if you reopen the device manager it will be empty, and after rebooting the machine (using the star...

Windows 95 sometimes gets stuck in MS-DOS Compatibility mode even after all the problems are fixed, to get rid of it open the registry editor (regedit.exe) and navigate to this key: HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\VxD\IOS An then in the right pane right click on the "NoIDE&...

I would find it handy to have a dedicated file extension for PCem configuration files, so that one can run/configure a machine directly by double clicking/right clicking/etc on the configuration file, without having to use the command line. And to keep things simple I think the .pcem file extension ...

That error CDR101 can happen (at least) with the Adaptec SCSI CD-ROM driver ASPICD.SYS MSCDEX recognizes the drive and assigns it a drive letter, but cannot read anything from it and displays the message CDR101: Not ready reading drive D ("D" or whatever drive letter corresponds to the CD-...

Yeah but some have serious graphics issues (Digger by Windmill Software) and others run too fast (Eternam by Infogrames) or have the Borland (Turbo) Pascal runtime error 200 on faster CPUs (Jazz Jackrabbit) although for this last bug there is a patch but I remember that cannot be applied to all the ...

Perhaps he just wants to play DOS games on some old computer too fast for these DOS games but not compatible with Windows XP or later, anyway I hope this helps anyone who needs to use an emulator on windows 9x for whatever reason: To play old DOS games under Windows 9x DOSBox would be the best optio...

It won't run on Windows 98 because it was coded for newer operating systems (XP and later) with more functions in the kernel, user interface and so on.

Try going to the nvr subfolder in the PCem folder and deleting the nvr file with a name resembling your configuration name and emulated machine name, that file stores the motherboard configurations and can get corrupted. For example if your configuration name is "MS-DOS 6.22" and the machi...

Yes, now it always closes correctly, even if I crash PCem printing to the experimental printer from Windows 3.11 Notepad

I don't know what the cause of it is now but in the V17 days i've avoided mounting hard drives to avoid the everlasting process when messing about video-related emulation ideas. Just had some config to mount nothing and head to the WinBIOS I just tried it a few times before compiling the latest sou...

I do know about the bug with pcem not closing properly, it is bug #90 https://github.com/sarah-walker-pcem/pcem/issues/90 Did not know about the printer issue. The code is a tad buggy and i have yet to test on Windows thats why it is in experimental. Oh sorry, I totally forgot to check it out on Gi...

Update: I renamed this post because the bug was already known but I will use it to continue reporting my experiences with the experimental printer feature After compiling the latest source (on MinGW64 Windows 10) I found that now pcem.exe process is not terminated after closing all windows. C:/msys6...

leilei wrote: ↑Fri 21 Jan, 2022 5:41 am the wx default icon in the low color pixel form happens to resemble 3 crewmates nowadays...

Hmm that's true, but now I can't unsee that another reason to change the icon

Yesterday I built pcem from the latest source code but today I was more awake and I realized that the main icon (the wxWidgets default icon) was missing, it has gone along with all other resources to libpcem.dll and now Windows has to show a generic executable icon in explorer, taskbar, shortcuts, e...

That can happen if you run cmake from MSYS2 MSYS, if this was your case you have to switch to MSYS2 MinGW 32 or MSYS2 MinGW 64 to compile PCem, in some of the earlier guides it was specified but I think the last guide is missing that step MSYS2: ________msys.png MSYS2 MINGW64: ________mingw64.png (E...

If I remember correctly the emulated FPU is only accurate enough to make 3D games look good, so the tests included in some BIOS or diagnostic programs will show errors, spreadsheets will have errors and so on.

:!: Almost all of them are protected by copyright and therefore there is no set of ROMs available here for download except for the Generic XT machine of which the source code is public domain ( http://pcem-emulator.co.uk/files/genxt.zip ) and the XTIDE BIOS licensed under the GPLv2 and used as an al...

I have updated my post above ( https://pcem-emulator.co.uk/phpBB3/viewtopic.php?p=15618#p15618 ) with a new archive that includes those DLLs, as well as pcem.exe compiled both under MINGW32 (x86) and MINGW64 (x64) from latest source code. Since "PCem-Windows-MINGW64-dev-56" may already inc...

I download PCem-Windows-MINGW64-dev-56 but how to run it in Windows? Some DLL's missing. Can you let me know which ones it is saying is missing? I am planning to automate this in case I add a dependency but if you got it from GitHub it should have the DLL's. People are uploading their own builds he...

I have put the necessary dll's in the following archive, both for PCem compiled under Mingw64 and Mingw32, just extract the proper ones to the same folder where you have pcem.exe Note: These are the ones used by my configuration, maybe other configurations that use other options need some other dll ...

By following this guide I was able to compile PCem on both MSYS2 MinGW 32 and MSYS2 MinGW 64 It works with Make: mkdir build && cd build cmake -G "MSYS Makefiles" -DUSE_NETWORKING=ON -DCMAKE_BUILD_TYPE=Release .. make And user shermanp found the way to do it also with Ninja: mkdir ...

Thank you very much for the guide, I was quite lost trying to find the correct commands... The only downside after compiling PCem is running it just to find how it complains about a lot of missing libraries ;-) so I have written all the necessary ones for a release build with networking in a single ...

Welcome MichealJManley!

The PC-DOS 1.x images have a small problem on the boot sector, they say "7-May-81" but "May-81" starts at offset 0x0B in place of the BIOS Parameter Block used by 2.x and further PC-DOS versions. This causes incompatibility with Winimage and also with any Windows version and I th...

Apparently genuine IBM PS/1 drives used one pin of the connector to signal if the drive was low or high density, maybe there was other pin used to signal 3.5" or 5.25"
In PCem 720KB drives are also identified as 1.44MB so I think those configuration pins are not (yet) emulated by PCem.

Could you give me an example for an APIC supported motherboard compatible with a Pentium MMX 233 ? Also, what/where should I configure the option in Windows 98? The easiest way is (re)installing Windows 98 from MS-DOS command line and using the pj parameter to enable ACPI support, for example d:\wi...

I'm not sure but mouse speed is somewhat related to screen resolution, if your display is UHD (2K or 4K or the like) you can try switching to a lower screen resolution, like full HD (1920x1080)

You can do the same with Winimage if you want to extract or add files, but be sure to exit from PCem before (closing main PCem window, not just closing that emulated machine) because it keeps the image file opened (bug???) and Winimage can't open shared files. I think Sarah fixed that bug for the v...

You can do the same with Winimage if you want to extract or add files, I mean there's no need to create more images, you can open the same image being used by PCem with Winimage and drag and drop files and folders fom/to any folder on your physical computer Edit: this only applies to early PCem rele...