MSVCR90 is a DLL that's provided by Visual C++ Runtime (Version 9.0, or 2008)
This file is typically installed with ROBOTC as a redistributable (built into the installer), but for some reason it doesn't seem to have installed properly on your computer.
Try running both of these and let me know if they resolve your issues.http://www.microsoft.com/en-us/download/details.as..
There may also be an issue with a Buffer Overflow Exception (BEX), which can be caused by the Windows Data Execution Prevention settings. To resolve this issue, you may need to disable Data Execution Prevention for ROBOTC (per this thread on Windows Answers: http://answers.microsoft.com/en-us/windows/forum/w..
To configure DEP settings
Click Start, click Control Panel, and then double-click System.
Click the Advanced tab. Then, under Performance, click Settings.
Click the Data Execution Prevention tab.
Click Turn on DEP for essential Windows programs and services only to select the OptIn policy.
Click Turn on DEP for all programs and services except those I select to select the OptOut policy.
If you selected the OptOut policy, click Add and add the applications that you do not want to use DEP with.
Please turn off DEP for ROBOTC and let me know if this resolves the issue for you.