Yesterday I faced this issue while trying to launch few applications on my windows 7 PC.
Error while launching an app
The program can’t start because api-ms-win-crt-runtime-l1-1-0.dll is missing from your computer. Try reinstalling the program to fix this problem.
The missing dll api-ms-win-crt-runtime-l1-1-0.dll is installed with a Windows update. To resolve this issue, download and install the Update for Universal C Runtime in Windows from Microsoft.
This update applies to the following operating systems:
You may download the current revision of ExQuilla from this links.
To install, download and save this file. Then from Thunderbird, open Tools/Add-ons, click on the Addon tools button and select “Install Add-on From File”. Install the downloaded file, then restart Thunderbird.
Alternatively, just go to the addons manager in Thunderbird, search for ExQuilla, and install it from there.
If you are having trouble, make sure that you know the correct internet address to open a web page to see your email, for example “https://yourcompany.com/owa” Replace the “owa” with “EWS/Exchange.asmx” and enter that as the Exchange URL. So for this example, the Microsoft Exchange URL would be: