Some APIs do not work when they are called in services in Windows

Applies to: Windows 8Windows 8 ProWindows 8 Enterprise More

Symptoms

Assume that you have a 32-bit service on Windows 10, Windows Server 2016, Windows 8, Windows Server 2012, Windows 8.1, or Windows Server 2012 R2. When the service calls a function that requires interaction with CPrintTicket WoW Services, the operation fails. For example, the service cannot call the .NET function GetPrintCapabilitiesAsXml or the equivalent native API function PTGetPrintCapabilities.

Note This issue does not occur when these APIs are called in an .exe file.

Workaround

To work around this issue, click the Fix it button or link. Then click Run in the File Download dialog box, and follow the steps in the Fix it wizard.

Notes

This wizard may be in English only. However, the automatic fix also works for other language versions of Windows.
If you are not on the computer that has the problem, save the Fix it solution to a flash drive or a CD and then run it on the computer that has the problem.
We would appreciate your feedback. To provide feedback or to report any issues with this solution, please leave a comment on the "Fix it for me" blog or send us an email message.

Last Updated: Oct 19, 2017

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