VCRUNTIME140.dll crash when connecting (file is present)

[ncflagg]

When I attempt to connect via WiFi or USB, the Windows app crashes. What VCRUNTIME140.dll version are you using that is working? What's its file size?:

Faulting module name: VCRUNTIME140.dll, version: 14.44.35211.0, time stamp: 0x0f259d81
Exception code: 0xc0000005

• Phone Model: Pixel 3
• Android Version: 12
• Connection Method: Both WiFi and USB seem to fail the same way
• Windows 10 22h2

Troubleshooting:

• Tried VCamdroid versions 1.3 and 1.3.1
• I've tried the 64-bit versions 14.44.35211.0 and 14.50.35719.0 of the VB runtimes
• I've also looked for other versions of the VCRUNTIME140.dll on my drive and tried randomly copying 5-6 of them directly into the VCamdroid installation directory
• I have registered the DLL as administrator
• Tried running the Windows app as admin
• I have Windows firewall completely disabled and no antivirus installed
• Ping works in both directions
• I ran Angry IP scanner against the phone (while the camera app was open) on ports 6969, 8554 and 39029 (my randomly-assigned debug port) and only the debug port shows open
• I can see the ADB device and am able to install the APK

C:\Portable\Audio-Video\VCamdroid\adb>adb devices
* daemon not running; starting now at tcp:5037
* daemon started successfully
List of devices attached
89LX0BPY8       device

Android Logs:

• There is no bug icon (or any other icon) I can see in the Android app to attempt to view any logs

vcamdroid.log, trying via USB:

[SERVER] Initialized on port 6969
[ADB:6969] Started 
[ADB:8554] Started 
[SERVER] Started
 -Connect phone to usb and see that debugging is enabled in toaster popup-
 -Run Android app-
[SERVER] Device connected.192.168.1.228:46154
 -Windows app immediately crashes-

Windows Application Logs:

Faulting application name: VCamdroid.exe, version: 0.0.0.0, time stamp: 0x697652c3
Faulting module name: VCRUNTIME140.dll, version: 14.44.35211.0, time stamp: 0x0f259d81
Exception code: 0xc0000005
Fault offset: 0x00000000000120cb
Faulting process id: 0x62a8
Faulting application start time: 0x01dc9175a8ea16ee
Faulting application path: C:\Portable\Audio-Video\VCamdroid\VCamdroid.exe
Faulting module path: C:\Windows\SYSTEM32\VCRUNTIME140.dll
Report Id: bbbdcda2-aed5-40f4-a3bf-a5b3b9ee44bd
Faulting package full name: 
Faulting package-relative application ID: 

Faulting application name: VCamdroid.exe, version: 0.0.0.0, time stamp: 0x697652c3
Faulting module name: VCRUNTIME140.dll, version: 14.50.35719.0, time stamp: 0x4260df93
Exception code: 0xc0000005
Fault offset: 0x000000000001202b
Faulting process id: 0x47f0
Faulting application start time: 0x01dc9158b867fde5
Faulting application path: C:\Portable\Audio-Video\VCamdroid\VCamdroid.exe
Faulting module path: C:\Windows\SYSTEM32\VCRUNTIME140.dll
Report Id: b9577608-659d-4830-9e75-7bae7e71841a
Faulting package full name: 
Faulting package-relative application ID: 

[darusc]

Install the latest supported version of the VC runtime (the one that has support up to Visual Studio 2026).

Also I don't think copying the .dlls in the app folder works, you need to use the installer

[ncflagg]

That's what I had done just before gathering the Windows Application logs. I had updated them and originally had version 14.50.35719.0. Later, I saw a hard link in the ReadMe for this repo (https://aka.ms/vs/17/release/vc_redist.x64.exe), and (uninstalled the prev version first) installed that version. I ended up with an older version in 14.44.35211.0. So, it seems that I had the latest version from the get-go

That's why I asked what version is working for you?

Also I don't think copying the .dlls in the app folder works, you need to use the installer

Fair enough. Maybe it won't work in this instance, but it's a tried-and-true method I've used to fix many other apps in the past. Maybe there's some other cause here that just looks like an incompatibility.

[darusc]

On my PC i have multiple vc++ redistributable versions: 14.50.35719, 12.0.40664 and 11.0.61030.

I tested the app on Windows Sandbox, so I don't have any .dlls installed, so no vcruntime. I got the same error on the first launch, but after installing the latest redistributable from https://learn.microsoft.com/en-us/cpp/windows/latest-supported-vc-redist?view=msvc-170#latest-supported-redistributable-version it worked normally, the app started and got no errors.

[Hakurye]

Hello, im experiencing the same issue and i do have the same exact log from both Windows' Event viewer and vcamdroid (in vcamdroid.log) but i gotta say that i tried to connect only via WiFi. The QR code scan does work, as the log says, it does establish a connection but then the desktop client crashes immediately, While the smartphone's app, does access to the camera and i can see the video on its screen

• I did install the latest version of Vcamdroid (v1.3.1)
• I did install the Vcamdroid client on the smartphone directly by launching the .apk
• First install: ⚠️ I did run the install.bat (on Windows) as admin but it was closing itself each time, so (after i saw one reply from another issue opened, which stated that it worked by just double clicking the .bat file) i installed it normally.
• Second install: Scrolling the other issues opened i followed an hint from another user which stated that running the install.bat script from an already open cmd ran as an administrator would work, and indeed it gave me a successfull installation popup
• I do have the latest version of vc_redist(x64) installed on my pc
• I did allow the access to both Private and Public Network to the app (through the popup at the end of the installation)

Vcamdroid log (Desktop Client

[ADB:6969] Failed to start 
[ADB:8554] Failed to start 
[SERVER] Started
[SERVER] Device connected.192.168.1.25:37524

Event viewer log:

Faulting module name: VCRUNTIME140.dll, version: 14.50.35719.0, time stamp: 0x4260df93
Exception code: 0xc0000005
Fault offset: 0x0000000000010e4b
Faulting process id: 0xCB0
Faulting application start time: 0x1DCA0E5DA69B6D5
Faulting application path: C:\Users\Watermelon\Downloads\VCamdroid\VCamdroid.exe
Faulting module path: C:\WINDOWS\SYSTEM32\VCRUNTIME140.dll
Report Id: b6b747d9-b1c5-4033-aef5-1a22ea5e68c5
Faulting package full name: 
Faulting package-relative application ID: 

VC Redist libraries installed on the machine:

• PC: Windows 11 Pro Vers. 25H2 (OS Build 26200.7623)
• Phone: Nubia Z60s Pro - Android 15 - NebulaAIOS1.0.3_NX725J_GB