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Virtual_display can not run on Windows7 #855

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opened 2026-02-20 23:12:15 -05:00 by deekerman · 5 comments

deekerman commented

2026-02-20 23:12:15 -05:00

Owner

Originally created by @Baker9017 on GitHub (Oct 18, 2022).

Describe the bug you encountered:

After complier all the code on Winodws 10, it can run well on all the Windows 10. But it can not run on Windows 7.
Error report as below

RustDesk.exe -- Entry Point Not Found

The procedure entry point SwDeviceCreate count not located in the dynamic link library CFGMGR32.dll.

I found the problem probably related to Virtual_display. Win7 can't call the function of SwDeviceCreate.

\libs\virtual_display\src\win10\IddController.c : line 239

// Create the device
    HRESULT hr = SwDeviceCreate(L"RustDeskIddDriver",
        L"HTREE\\ROOT\\0",
        &createInfo,
        0,
        NULL,
        CreationCallback,
        &hEvent,
        hSwDevice);
    if (FAILED(hr))
    {
        SetLastMsg("SwDeviceCreate failed with 0x%lx\n", hr);
        if (g_printMsg)
        {
            printf(g_lastMsg);
        }

        return FALSE;
    }

What did you expect to happen instead?

Win 7 doesn't support the feature of virual_display, whether we can add a condition,
if os == windows7
call the legacy method instead of call 'SwDeviceCreate'

How did you install RustDesk?

Build curren code and run it directly.

RustDesk version and environment

1.2.0 Windows7

Originally created by @Baker9017 on GitHub (Oct 18, 2022).  **Describe the bug you encountered:** After complier all the code on Winodws 10, it can run well on all the Windows 10. But it can not run on Windows 7. Error report as below ``` RustDesk.exe -- Entry Point Not Found The procedure entry point SwDeviceCreate count not located in the dynamic link library CFGMGR32.dll. ``` I found the problem probably related to Virtual_display. Win7 can't call the function of SwDeviceCreate. ``` \libs\virtual_display\src\win10\IddController.c : line 239 // Create the device HRESULT hr = SwDeviceCreate(L"RustDeskIddDriver", L"HTREE\\ROOT\\0", &createInfo, 0, NULL, CreationCallback, &hEvent, hSwDevice); if (FAILED(hr)) { SetLastMsg("SwDeviceCreate failed with 0x%lx\n", hr); if (g_printMsg) { printf(g_lastMsg); } return FALSE; } ``` **What did you expect to happen instead?** Win 7 doesn't support the feature of virual_display, whether we can add a condition, if os == windows7 call the legacy method instead of call 'SwDeviceCreate' **How did you install `RustDesk`?** Build curren code and run it directly.  --- **RustDesk version and environment** 1.2.0 Windows7

deekerman

2026-02-20 23:12:15 -05:00

closed this issue
added the
bug
label

deekerman commented

2026-02-20 23:12:18 -05:00

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@rustdesk commented on GitHub (Oct 19, 2022):

#763

@rustdesk commented on GitHub (Oct 19, 2022): #763

deekerman commented

2026-02-20 23:12:18 -05:00

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Owner

@zkteco-home commented on GitHub (Nov 15, 2022):

I also met same issue,i want to run it on Win7

@zkteco-home commented on GitHub (Nov 15, 2022): I also met same issue,i want to run it on Win7

deekerman commented

2026-02-20 23:12:19 -05:00

Author

Owner

@zkteco-home commented on GitHub (Nov 16, 2022):

@rustdesk Firstly thanks for your great work,i just want to confirm one thing if latest code(master branch) can run on Windows 7 with sciter.dll(not flutter version).i found bcz of virtual display ,it cant run on windows 7,if it really cant run on win7,i will stop to work hard at it.

@zkteco-home commented on GitHub (Nov 16, 2022): @rustdesk Firstly thanks for your great work,i just want to confirm one thing if latest code(master branch) can run on Windows 7 with sciter.dll(not flutter version).i found bcz of virtual display ,it cant run on windows 7,if it really cant run on win7,i will stop to work hard at it.

deekerman commented

2026-02-20 23:12:19 -05:00

Author

Owner

@rustdesk commented on GitHub (Nov 16, 2022):

No idea either.

@rustdesk commented on GitHub (Nov 16, 2022): No idea either.

deekerman commented

2026-02-20 23:12:19 -05:00

Author

Owner

@zkteco-home commented on GitHub (Nov 30, 2022):