First, what is VisualSpec? It is a free software that is widely used in the astronomical spectroscopy community that can read spectral profiles and analyse them. It is also connected to BeSS Be Star Spectra database so it makes it easy to compare your own spectra with latest ones in the database or perform some report/analysis of any Be star you like!
VisualSpec is available there: http://astrosurf.com/vdesnoux/
After setup, here is a trick to register the tabctl32.ocx file VisulSpec needs. It is taken from: https://answers.microsoft.com/en-us/windows/forum/windows_7-performance/tabctl32ocx-file-missing/1d615fca-1414-4d79-8951-5d6353ed3105
Step 1: Open a command prompt with Administrator privileges:
- Click Start, type in cmd in the Start Menu search box, right click on the cmd option displayed in the search results, and click on Run as Administrator.
- Click on Allow or Continue at the User Account Control prompt that should be displayed next.
Now you should have a command prompt with Administrator privileges open.
Step 2: Execute a re-registering process of the tabctl32.ocx file by running the following commands one after the other. I am providing one command in one line, type them in one by one and hit Enter after each command (assuming VisualSpec is installed in the C:\vspec directory otherwise change it to your setup):
- cd \vspec
- regsvr32 /u comct332.ocx
regsvr32 /u comdlg32.ocx
regsvr32 /u mscomct2.ocx
regsvr32 /u mscomctl.ocx
regsvr32 /u MyConsole.ocx
regsvr32 /u RichtX32.ocx
regsvr32 /u tabctl32.ocx
From there, open VisualSpec and open a spectral profile (you can also drag-drop a FITS file from Windows explorer) - here I am looking at my order 34, ie Halpha, of 12 Vul:
Activate the link to CDS by using the menu Assistant / CDS Query. Just to click on the small buton to fill in automatically the target name and OK. It will open a web page from the CDS, just leave it open for your VIsualSpec session.
Then click on the BeSS icone at the bottom right:
observatory surrounded by flowers