In order to activate your license for one of our tools you have to download it first from here: http://www.igramtool.com/accounts/tools/
If you don’t own a license yet, you can buy one from here: http://www.igramtool.com/accounts/tools/all
So after you own a license, in order to start using the tools you will have to download them, extract them using winrar or something similar and open the .exe file, you will get a windows like this, here you have to input your username and password, after that you will have to copy the GUID from that window. Here is a privew:

Go to our website on the same page you’ve downloaded the tool from and click the update GUID button:

Paste the GUID here and click submit:

Now you should be able to login without any problems.