Blue Screen of Death (BSoD)
Insufficient Virtual Memory
Some other computer error lies to the RAM space of your PC. There are cases that we tend to download Runtime Error; Line: 1; Error: Invalid Character – ESRI Discussion … countless software which makes the RAM space of PC loaded. This issue causes the virtual memory to be too low. You have two options if you want to fix this error and what to apply lies on the main problem. An additional chips added into RAM space is one of those solutions you can take. If your RAM still functions well, you need to simply add file page to keep it going. You can start the procedure by going to the control panel and simply clicking on the advance setting.
Missing DLL Files
Internet Explorer reporting Invalid Character errors when debugging – http://cautionsingularityahead.blogspot.com/2013/07/internet-explorer-reporting-invalid.html