I am migrating my bbses from an old PC to a new PC. The old PC runs Windows 7 and the new PC is running Windows 11 Pro. I am running Synchronet 3.19b on the old PC.

I am trying to install 3.19b onto the new Win 11 PC and getting the error 0xc000007b.

I have copied the DLLs mscvr100.dll and vcruntime140.dll to the new machine because I got errors saying they were missing when I first tried to run Synch.

I also installed the vcredist files from 2005 thru 2022.

Still getting the error... any ideas?

(oh the error comes from sbbsctrl.exe)

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Re: Error 0xc000007b
By: Bf2k+ to All on Fri Aug 29 2025 08:08 am

I am migrating my bbses from an old PC to a new PC. The old
PC runs Windows 7 and the new PC is running Windows 11 Pro. I am
running Synchronet 3.19b on the old PC.

I am trying to install 3.19b onto the new Win 11 PC and getting
the error 0xc000007b.

I have copied the DLLs mscvr100.dll and vcruntime140.dll to the new
machine because I got errors saying they were missing when I first
tried to run Synch.

I also installed the vcredist files from 2005 thru 2022.

Still getting the error... any ideas?

are you trying to load a 64bit dll in a 32bit process or vice versa?
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þ Synchronet þ ::: BBSES.info - free BBS services :::

Re: Error 0xc000007b
By: Bf2k+ to All on Fri Aug 29 2025 08:08 am

I am migrating my bbses from an old PC to a new PC. The old PC runs Windows 7 and the new PC is running Windows 11 Pro. I am running Synchronet 3.19b on the old PC.

I am trying to install 3.19b onto the new Win 11 PC and getting the error 0xc000007b.

I have copied the DLLs mscvr100.dll and vcruntime140.dll to the new machine because I got errors saying they were missing when I first tried to run Synch.

I also installed the vcredist files from 2005 thru 2022.

Still getting the error... any ideas?

(oh the error comes from sbbsctrl.exe)

First, as an experiment, trying running sbbs.exe instead of sbbsctrl.exe and see what if any error you get and report it back here

It'd also be useful to know what console/log output comes out of sbbs.exe before a crash.
--
digital man (rob)

Synchronet/BBS Terminology Definition #36:
FTN = FidoNet Technology Network
Norco, CA WX: 89.1øF, 28.0% humidity, 5 mph WNW wind, 0.00 inches rain/24hrs ---
þ Synchronet þ Vertrauen þ Home of Synchronet þ [vert/cvs/bbs].synchro.net

Re: Error 0xc000007b
By: MRO to Bf2k+ on Fri Aug 29 2025 11:08 am

are you trying to load a 64bit dll in a 32bit process or vice versa?

Win11 is 64-bit. And 32-bit DLLs load just find on 64-bit Windows. It could be something to do with trying to run 16-bit programs however (and 64-bit editions of Windows don't include a 16-bit compatible subsystem). Maybe some kind of event? <shrug>
--
digital man (rob)

Breaking Bad quote #50:
I've got your restraining order right here. [grabs crotch] Restrain this! - WW Norco, CA WX: 89.1øF, 28.0% humidity, 5 mph WNW wind, 0.00 inches rain/24hrs ---
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Re: Error 0xc000007b
By: Digital Man to MRO on Fri Aug 29 2025 12:06 pm

Re: Error 0xc000007b
By: MRO to Bf2k+ on Fri Aug 29 2025 11:08 am

are you trying to load a 64bit dll in a 32bit process or vice versa?

Win11 is 64-bit. And 32-bit DLLs load just find on 64-bit Windows.
It could be something to do with trying to run 16-bit programs
however (and 64-bit editions of Windows don't include a 16-bit
compatible subsystem). Maybe some kind of event? <shrug>

i just looked up the code and some people were having that issue.
i'm not sure if it lets you install 32bit on a 64bit platform for VC distributable.
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þ Synchronet þ ::: BBSES.info - free BBS services :::

Re: Error 0xc000007b
By: MRO to Bf2k+ on Fri Aug 29 2025 11:08 am

are you trying to load a 64bit dll in a 32bit process or vice versa?

Good question. I don't know.

I am running Synchronet Control Panel in Windows 11.

maybe the DLLs I copied from the Win 7 machine are 32 bit and the sbbsctrl.exe is 64? I don't know...

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Re: Error 0xc000007b
By: Digital Man to Bf2k+ on Fri Aug 29 2025 12:04 pm

Re: Error 0xc000007b
By: Bf2k+ to All on Fri Aug 29 2025 08:08 am
First, as an experiment, trying running sbbs.exe instead of sbbsctrl.exe and see what if any error you get and report it back here

Same error reported by sbbs.exe

It'd also be useful to know what console/log output comes out of sbbs.exe before a crash.

Where do I find this log?

(I'm sorry I don't know more. I set up this BBS three years ago and it just runs. I took over a friend's bbs [Retrorunning - also 3.19b]. Just copied his system into my system and it went on running. Easiest BBS I have ever set up and there have been more than a few. :) )

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Re: Error 0xc000007b
By: MRO to Digital Man on Fri Aug 29 2025 02:23 pm

Re: Error 0xc000007b
By: MRO to Bf2k+ on Fri Aug 29 2025 11:08 am

i just looked up the code and some people were having that issue.
i'm not sure if it lets you install 32bit on a 64bit platform for VC distributable.

For the vcRedist files I got them here: www.techpowerup.com/download/ and installed them using the included batch file that installs them all. No errors during this process.

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Re: Error 0xc000007b
By: MRO to Digital Man on Fri Aug 29 2025 02:23 pm

i'm not sure if it lets you install 32bit on a 64bit platform for VC distributable.

It does and it's okay.
--
digital man (rob)

Rush quote #65:
He's got to make his own mistakes and learn to mend the mess he makes
Norco, CA WX: 93.5øF, 29.0% humidity, 3 mph W wind, 0.00 inches rain/24hrs
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Re: Error 0xc000007b
By: Bf2k+ to MRO on Fri Aug 29 2025 01:13 pm

Good question. I don't know.

I am running Synchronet Control Panel in Windows 11.

maybe the DLLs I copied from the Win 7 machine are 32 bit and the sbbsctrl.exe is 64? I don't know...

Synchronet for Windows is currently 32-bit only, but installs and runs fine on 64-bit Windows (without any special magic). The only "gotcha" is 16-bit DOS program support which is documented pretty well on wiki.synchro.net.
--
digital man (rob)

Sling Blade quote #26:
Karl: kaiser blade, ax handle with long blade on it shaped kinda like a banana. Norco, CA WX: 93.5øF, 29.0% humidity, 3 mph W wind, 0.00 inches rain/24hrs
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Re: Error 0xc000007b
By: MRO to Digital Man on Fri Aug 29 2025 02:23 pm

i just looked up the code and some people were having that issue. i'm not sure if it lets you install 32bit on a 64bit platform for VC distributable.

I'm pretty sure you can because I've done it before. You'd need to install the 32-bit VC redistributable in order to run 32-bit software that depends on it.

Nightfox

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þ Synchronet þ Digital Distortion: digitaldistortionbbs.com

Bf2k+ wrote to Digital Man <=-

(I'm sorry I don't know more. I set up this BBS three years ago and it just runs. I took over a friend's bbs [Retrorunning - also 3.19b].
Just copied his system into my system and it went on running. Easiest
BBS I have ever set up and there have been more than a few. :) )

Sounds like a good opportunity to stop being an "autopilot sysop" and
actually figure out how things work... You know, like a real sysop.




... Internal Error: The system has been taken over by sheep at line 19960
--- MultiMail/Linux v0.52
þ Synchronet þ Palantir BBS * palantirbbs.ddns.net * Pensacola, FL

Re: Error 0xc000007b
By: Bf2k+ to Digital Man on Fri Aug 29 2025 01:21 pm

Re: Error 0xc000007b
By: Digital Man to Bf2k+ on Fri Aug 29 2025 12:04 pm

Re: Error 0xc000007b
By: Bf2k+ to All on Fri Aug 29 2025 08:08 am
First, as an experiment, trying running sbbs.exe instead of sbbsctrl.exe

and

see what if any error you get and report it back here

Same error reported by sbbs.exe

It'd also be useful to know what console/log output comes out of sbbs.exe before a crash.

Where do I find this log?

sbbs.exe on Windows just logs to the screen/console. You should be able copy/paste from that console into a message here.

(I'm sorry I don't know more. I set up this BBS three years ago and it just runs. I took over a friend's bbs [Retrorunning - also 3.19b]. Just copied his system into my system and it went on running. Easiest BBS I have ever set up and there have been more than a few. :) )

You could also try a fresh install of Synchronet v3.19b on that same system to confirm it's not a system-level issue. i.e. it's something to do with that particular *configuration* of Synchronet that's not compatible with the new system.
--
digital man (rob)

Sling Blade quote #17:
Charles Bushman: A shovel just makes too goddamned much racket.
Norco, CA WX: 93.0øF, 26.0% humidity, 9 mph W wind, 0.00 inches rain/24hrs
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Re: Error 0xc000007b
By: Bf2k+ to MRO on Fri Aug 29 2025 01:28 pm

Re: Error 0xc000007b
By: MRO to Digital Man on Fri Aug 29 2025 02:23 pm

Re: Error 0xc000007b
By: MRO to Bf2k+ on Fri Aug 29 2025 11:08 am

i just looked up the code and some people were having that issue.
i'm not sure if it lets you install 32bit on a 64bit platform for VC distributable.

For the vcRedist files I got them here: www.techpowerup.com/download/ and installed them using the included batch file that installs them all. No errors during this process.

The correct place to Microsoft packages is from Microsoft's web-sites. There are links provided here: https://wiki.synchro.net/install:win
--
digital man (rob)

Synchronet "Real Fact" #49:
Synchronet program was named 'sbbs' instead of 'sync' to avoid conflict w/Unix Norco, CA WX: 93.0øF, 26.0% humidity, 9 mph W wind, 0.00 inches rain/24hrs
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Re: Re: Error 0xc000007b
By: Gamgee to Bf2k+ on Fri Aug 29 2025 04:55 pm

Sounds like a good opportunity to stop being an "autopilot sysop" and actually figure out how things work... You know, like a real sysop.

Would I then get to be more like you?
I hope not.

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Re: Error 0xc000007b
By: Digital Man to Bf2k+ on Fri Aug 29 2025 04:23 pm

sbbs.exe on Windows just logs to the screen/console. You should be able copy/paste from that console into a message here.

If you mean in the main synchronet window, it never loads. It aborts with the error immediately.

And this is a completely new installation of 3.19b on a completely new install of Windows 11 on a newly built PC. I have not even attempted to move my bbs over to this machine.

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Re: Error 0xc000007b
By: Bf2k+ to MRO on Fri Aug 29 2025 01:13 pm

Re: Error 0xc000007b
By: MRO to Bf2k+ on Fri Aug 29 2025 11:08 am

are you trying to load a 64bit dll in a 32bit process or vice versa?

Good question. I don't know.

I am running Synchronet Control Panel in Windows 11.

maybe the DLLs I copied from the Win 7 machine are 32 bit and the sbbsctrl.exe is 64? I don't know...

well do what rob says and collect the error msgs in the console.
then backup everything and then 'transplant' the files you need from github
or run synchronet upgrade executable from the sbbs site.

personally i think your best bet is to run your bbs in a 32bit windows 10 vm. if you need an .iso, i have one here if you need it. I just installed one
last weekend.
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Re: Error 0xc000007b
By: MRO to Bf2k+ on Fri Aug 29 2025 09:51 pm

well do what rob says and collect the error msgs in the console.

I'd love to. But if I understand you correctly, the 'console' is the Synchronet Control panel and it never loads. The errors pops up upon execution and immediately shuts down.

I could load Process Monitor, run sbbs and then capture that PM log and send that. Would that help?

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Hey Bf2k+!

On Fri, 29 Aug 2025 21:15:46 -0700, you wrote:

I'd love to. But if I understand you correctly, the 'console' is the Synchronet Control panel and it never loads. The errors pops up upon execution and immediately shuts down.

The 'console' is not the Synchronet Control Panel. It's the Windows command prompt. Open that, 'cd' to your 'sbbs\exec' directory, and manually type "sbbs".

Regards,
Nick

... Sarcasm: because beating people up is illegal.
--- GoldED+/LNX 1.1.5-b20250409
* Origin: _thePharcyde telnet://bbs.pharcyde.org (Wisconsin) (723:1/1)
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Re: Error 0xc000007b
By: Bf2k+ to MRO on Fri Aug 29 2025 09:15 pm

Re: Error 0xc000007b
By: MRO to Bf2k+ on Fri Aug 29 2025 09:51 pm

well do what rob says and collect the error msgs in the console.

I'd love to. But if I understand you correctly, the 'console' is the Synchronet Control panel and it never loads. The errors pops up upon execution and immediately shuts down.

I could load Process Monitor, run sbbs and then capture that PM log and send that. Would that help?

I think I had a similar issue while I was installing SBBS on a Windows 11 Insider Preview on a virtual machine.

I did a couple of experiments, but what I found out was I was installing the wrong version of the VC redist files; you should download and install the x86 instead of the x64 ones (but in my case, I just installed both; they installed together nicely and I didn't have problems with my SBBS executables.)

When I was still had the x64 version installed, I wondered why the dll files are not found even though I saw the .dll files in C:\Windows\System32; then I tried copying the said DLL files in the C:\Sbbs\Exec directory, and an error similar to that occurred, regardless of the SBBS executable I run (sbbsctrl.exe, sbbs.exe, jsexec.exe).

After installing the x86 version, and deleting the .dll files in C:\Sbbs\Exec, it started working.

Could you confirm that you have only installed the dll files via the Microsoft installer, and not copied arbitrarily the .dll files to your SBBS installation directories?

Hope this helps.

- Wang Bu

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