I am using the following version of Instant Jchem
# Version info of Instant JChem
# TODO RELEASE
I have this installed on a Windows Vista x64 based machine. After the installation is complete, I click on the ijc.exe file to run Instant Jchem and nothing happens. I restarted the computer but that didnt fix the problem. I also reinstalled it and the problem persists. Any idea of what I can do to open the application?
It looks like a Vista specific problem. A few ideas what can help:
1. Could you please go to Instant JChem directory and run executable directly:
It's typically located under:
and run this: instantjchem_w.exe
It opens the console and you can see possible errors there.
2. Also there can be error.log located in the same directory. Could you please send us its content if this file exists?
3. Other possible problem can be in ChemAxon\InstantJChem\etc\instantjchem.conf ... for example if jdkhome is not properly set?
4. Vista creates a "virtual directories" if user is not admin and is updating the software. In this case you would probably see some error message so it's not very likely it's this problem. Anyway, have you installed any older versions of Instant Jchem 3.4.x or older? This directory is usually located at
Does this directory exist and contain any files?
thank you for any additional information.
After going through your reply to my post I double checked if I was signed in as the administrator. I am signed in as the administrator but with Vista, I have to right click and select run as Administrator. Once I did that, it worked. Thank you