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leecher1337 / ntvdmx64

Run Microsoft Windows NTVDM (DOS) on 64bit Editions
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InstallSeild On win11 #278

Closed GiladDaKing closed 3 weeks ago

GiladDaKing commented 4 weeks ago

i tried to install the original commandos on my pc with ntvdmx64 but it didnt work i did it in a win 10 VM and it worked but in a win 11 VM it didnt do anything. the installer is called installsheild engine EXE image

leecher1337 commented 3 weeks ago

May be a bug in Windows 11, Installshield installers normally should be wrapped by Windows, maybe Installshield support broke in Win 11? You can also see that InstallShield Engine EXE is a 32bit Process, so this is not a 16bit process and therefore not NTVDM related. Contact Microsoft Support.

leecher1337 commented 3 weeks ago

Additional note: As desribed in https://github.com/leecher1337/ntvdmx64/issues/227 Microsoft removed crucial functions for WOW16 16bit Windows Application support in Windows 11 22H2. So NTVDM's support for 16bit Windows Applications is no more and never ever will come back as long as Microsoft doesn't restore the crucial functions that they removed, it's simply impossible from the technical point of view, as the whole WOW16 layer depends on these functions. You best bet may be to install WineVDM (OTVDM). I don't think that it's related to your problem, as the installer executable is 32bit, but it doesn't hurt, in case you want to try it. It may still be benificial, as installing WineVDM prevents NTVDM from loading when executing a Win16 application (in case the setup launcher is 16bit) and maybe this results in Windows handing off Installshield to the appropriate handler function.

GiladDaKing commented 3 weeks ago

i didnt say that. but in the win 10 vm it opened an app called wowexec. i found it in the syswow64 folder and in win 10 it opened normally but in win 11 it didnt do anything. so i think that the problem because it looks like the installer is trying to open the wowexec

GiladDaKing commented 3 weeks ago

also i tried otvdm and it worked but it said that i can only run in win 95 but that the installer problem

leecher1337 commented 3 weeks ago

So maybe 32bit installer tries to run 16bit stub, but is unable to execute 16bit installer. What you can try is to temporarily disable the ldntvdm-loader (see https://github.com/leecher1337/ntvdmx64/issues/277 ) and check if the installer starts without NTVDM (and also uninstall otvdm), as Windows has some compatibility mechanisms built in for old installers that may not get executed if 16bit-support is present. If it really depends on WOWEXEC / WOW16 layer, you are out of luck, Microsoft simply completely ruined it in 22H2, you only can downgrade to Win 10 or rollback to a Win 11 release before 22H2 or run a VM with the application in that case, unfortunately.

GiladDaKing commented 3 weeks ago

it didnt work image ):

leecher1337 commented 3 weeks ago

Ok, then you are out of luck with this installer and Win 11 version, unfortunately.

You can file a complaint to MS about crippling their OS (as I did in the link above in the feedback hub of MS, but to no avail).