Serial Port ActiveX Control Frequently Asked Questions

  • When I enter registration key, I receive the following message: “Key is valid and has been stored. Please, reload your IDE to finalize the registration”. What does it mean?

This means that you have to restart your development environment (VB6, Delphi, Builder, VC6, VC.Net, C#, VB.Net, MS Access and so on).

  • I have entered registration key, that you mailed me, and got the following message: “Key is valid and has been stored. Please, reload your IDE to finalize the registration”. Once I restarted IDE, I was offered to enter the password. What am I doing wrong?

Re-enter registration key you got from us and make sure that it is correct. The most common mistake is a space in a key.

  • I cannot use VBScript with Internet Explorer 11, are there any workarounds?

Since VBScript support was removed from Internet Explorer 11, please use the JavaScript sample instead.

Alternatively, the following line can be added to the HEAD tag of the VBScript example:

<meta http-equiv=”x-ua-compatible” content=”IE=10”>
  • Are there any peculiarities of the Read method usage in the JavaScript sample?

It is not recommended to use the Read method in the JavaScript example, due to its incorrect functioning, when more than 1 byte of data is specified for reading from the port. Please use the ReadVariant instead.

  • Are there any peculiarities of the ReadStr method usage in the JavaScript sample?

The ReadStr method cannot be used to read the characters with zero code in the JavaScript sample, since they represent the end of the line. Please use the ReadVariant method instead.