Setting CheckBox value to checked

Some context, I'm still rather new at c# but I've updating c# code that someone else wrote that is incomplete. I've come across this code that seems to be giving me an error.

gblnEnableSSL = Convert.ToBoolean(Convert.ToInt32(Utils.GetSetting("Program", "Configuration", "SSL", "0")));

Utils.GetSetting("Program", "Configuration", "SSL", "0") returns a string "false" currently.

I've found that removing Convert.ToInt32() solves my problem. But, I was unconvinced that someone simply added Convert.ToInt32() that broke the code. I checked in the repo and was surprised to find that the previous code of the same line use to be:

gblnEnableSSL = Utils.GetSetting("Program", "Configuration", "SSL", "0").ToUpper() == "TRUE";

Which seemed to work as well. The checkbox checked value is set by using chkEnableSSL.Value = gblnEnableSSL;

My question is whether or not there is a difference between setting the value using a bool value or a string value. Also, is a difference between chkEnableSSL.value vs chkEnableSSL.Checked?

Edit: I'm not getting a compiler or run-time error with the previous code. It does not perform the code afterwards. For example, i have txtDataSource.Text = strDataSource; immediately after and it does not set the text unless i comment out gblnEnableSSL = ... or remove the Convert.ToInt32().