The Msidcrl40.dll file is an important component of the program Windows Live Messenger. Unfortunately, this file may cause problems in your computer and make your Windows unable to read it properly, hence, causing your computer to not be able to load Windows Live Messenger. As you attempt to use Windows Live Messenger, some of the error alerts that would be shown are the following:

There various reasons why this error appears and it is important that you identify the specific causes for you to do the appropriate steps in resolving the issue. It may be the case that other programs are causing the error.

How To Fix MsidCRL40.dll Errors

This can be easily noticed as the error messages will be displayed every time you run that program. To fix this, you have to remove and install the application causing the problem again. You can begin this process by following these steps:

• Click”Start” and then click onto “Control Panel“
• Select “Add/Remove Programs” (if you using XP) or “Programs and Features” (Windows Vista & 7).
• From the list, choose the programs you want to delete and then press the “Uninstall” tab.
• After that, restart your PC. If you wish to install the application again you may do so by downloading the file you are seeking from the World Wide Web or you can use an installer CD/DVD.

If the error still persists, then you may have setbacks in your registry. Therefore, the last but very important step to do in addressing this issue is to clean the registry of your computer. The “registry” is a central database where pertinent files, information, settings and options are stored. Windows constantly access files every time it loads up or runs a program through this database. When the registry gets damaged, corrupted or clogged up, then Windows will not be able to read the files properly, hence, errors like msidcrl40.dll error occur. To resolve this, it is highly recommended that you download and run a reliable registry cleaner in your PC. The available registry cleaning tools had been proven to work efficiently and can remove 99% of errors from your computer.