ActiveX test contact failed to create control the reason why the unspecified error control cannot be loaded

Source: Internet
Author: User

This article refers to ActiveX of the VC ++ project.

When this problem occurs, I have summarized the following issues, and there may be other reasons:

1. chinese problem: If your project type is multi-byte rather than unicode encoding, you may have to pay attention to this problem, and I have encountered this problem, in order to solve this problem, the project cannot be re-generated and then excluded one by one. The result shows that a company name is added to the "Copyright company name (c)", which is manually added by myself, the result is that the task cannot be run.

 

2. When acticex is running, other DLL libraries are not in the same directory or not in system32, which will cause this problem.

3. the LIC file is lost due to running license. if you select the "RunTime license" option when creating a project, a LIC file will be generated in your project. If this file is not packaged together, this problem will occur!

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