CreateProcessAsUser error #193

When trying to convert HTML to PDF in Winforms on Windows 11, it gives this error

CreateProcessAsUser error #193


3 Replies

SN Santhiya Narayanan Syncfusion Team March 20, 2026 10:06 AM UTC

Hi olayinka,

We have checked the reported issue on our end but we were unable to reproduce it.

Please find the UG documentation link below for reference.

https://help.syncfusion.com/document-processing/pdf/conversions/html-to-pdf/net/windows-forms

https://help.syncfusion.com/document-processing/pdf/conversions/html-to-pdf/net/troubleshooting

We request you to share the complete code snippet or a modified sample , product version, complete stack trace of the issue, screenshot. So that, It will be helpful for us to analyze and assist you further on this.

Regards,

santhiya






OL Olayinka March 20, 2026 08:58 PM UTC

I can't reproduce the problem on my own PC also. It's one of my clients that reported such.



SG Sivaram Gunabalan Syncfusion Team March 23, 2026 10:10 AM UTC

Hi Olayinka,

Based on our initial analysis, this issue may occur if the process being executed is incompatible with the system architecture. For example, a 64-bit process attempting to run on a 32-bit operating system can cause such failures.
Please note that the current Blink binaries are compatible only with 64-bit systems and are not compatible with 32-bit architectures.
For 32‑bit Windows systems, please refer to the following troubleshooting guide, which explains how to resolve this issue:
https://help.syncfusion.com/document-processing/pdf/conversions/html-to-pdf/net/troubleshooting#converting-the-html-to-pdf-fails-in-x32-bit-windows-system-environment 

If you are using a 32‑bit Windows system, kindly follow the steps mentioned in the above link and check if the issue is resolved.

If you are not using a 32‑bit Windows system, please share the following details so that we can investigate this further:

    1. Windows OS version (including 32‑bit or 64‑bit information)
    2. .NET framework/.NET runtime version
    3. Syncfusion HTML-to-PDF and Blink version you are using
    4. Sample HTML or URL that reproduces the issue
    5. Complete exception details and stack trace (if available)
Once we receive these details, we will analyze them and assist you further.


Regards,
Sivaram G


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