![]() Windows Registry Editor Version creating the registry key, the vbs script worked (it didn’t make the application work though but more about that in yesterday’s post). So by creating the key HKEY_CLASSES_ROOT\Licenses\4250E830-6AC2-11cf-8ADB-00AA00C00905 and set it’s default value to kjljvjjjoquqmjjjvpqqkqmqykypoqjquoun we will pass the license check. The debugger shows us the contents of lpString and lpString2 when we hover the mouse over: I opened sub_21C118D3 and set a breakpoint on RegQueryValueA. ![]() So a registry key under HKEY_CLASSES_ROOT\Licenses is checked. I searched in the Strings Tab for the word Licenses which brought up this part of the code: I decided to open MSCOMM32.OCX in Ida Pro to see where this error comes from. simply sending AT commands what you want to do. Also in addition to Peters other useful info, you can open and write to a com port as a file, though this is not all that useful for serious telecommunications operations. I looked up this error code and it stands for CLASS_E_NOTLICENSED.Ī google search lead me to this kb article which explains that it’s a license issue that only occurs when you create the control at run-time.Īt this point I wasn’t sure if my problem was related to Normally you can work with that com port as if it were a standard hardware port. The VBS code is then simply: Set objMSComm = CreateObject("MSCommLib.MSComm")Įxecuting the script failed with error 80040112. ![]() For that I needed the ProgID from the same registry key: My next check was to confirm if the control was actually working with a VB Script. This confirmed that the component was registered: I wanted to quickly test if the component was correctly registered so I searched the registry from HKEY_CLASSES_ROOT for mscomm32.ocx. Runtime Error n.5 while changing SComm1.Yesterday I wrote about troubleshooting an application that used Com Port redirection in Citrix.ĭuring the troubleshoot I noticed that the application used an ActiveX component, MSCOMM32.OCX, for serial communication. And of course, HOWTO: Transmit and Receive Binary Data using MSCOMM32. ![]() Also useful may be HOWTO: Send to the Serial Port by Using Mscomm32.ocx. _OnComm event does not work after some time HOWTO: Receive from the Serial Port by Using MScomm32.ocx. Most Recent Topics in the SComm32 Support Forum. SComm32 has the same property names, methods and syntax as the now unsupported MSComm32 so, in many cases, it takes just a minute or two to add our SComm32 component to a project in place of MSComm32 without needing to change any of your code or learn any new syntax. SComm32 OCX is an ActiveX component (OCX) that software developers can add to the tool box of their development environment in place of Microsoft's MSComm32 component.ĭevelopers using Visual basic 6 and many other similar environments such as Office/VBA can use SComm32 to quickly add Serial Communications capabilities to software projects in 32 and 64bit versions of Windows 10, Windows 8, 7, Vista and XP. ![]()
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