Microsoft Visual Studio 2013 C++ Redistributables allows people to run software that was compiled for Windows using the Microsoft 2013 C++ compiler. Depending on whether you are using 32-bit or 64-bit windows, you will need to download and install one of the 32-bit or 64-bit redistributables. This only has to happen once, when you first install Gorman Maintenance Logs on a computer. IF YOU EXPERIENCE AN ERROR ABOUT A MISSING FILE SUCH AS MSVCR120.DLL WHEN STARTING GORMAN MAINTENANCE LOGS, THE MOST LIKELY CAUSE IS THE MICROSOFT REDISTRIBUTABLES ARE NOT INSTALLED. The redistributables are free for anyone to install, and may be download directly from Microsoft at this location: https://www.microsoft.com/en-ca/download/details.aspx?id=40784 The MD5 checksums for the 32-bit and 64-bit redistributables are as follows: 96b61b8e069832e6b809f24ea74567ba vcredist_x64.exe 0fc525b6b7b96a87523daa7a0013c69d vcredist_x86.exe Download and install the redistributables directly from Microsoft (e.g., see the URL above), or from the cached version on the C Code Run web site. Stephane Charette 2017-Jul-17 ----------------------- IMPORTANT UPDATE: Newer versions of GML are now built with Visual Studio 2017 instead of VS2013. Only 64-bit versions of GML are available. The new versions of GML require the 2017 redistributables, not the 2013 version. The MD5 checksum for the VS 2017 64-bit redistributables is: 1bd671ce0deaaa901841ae87d92b3606 vcredist_vs2017_x64.exe Stéphane Charette 2018-Sep-08