Runtime error! dllhost.exe "This application has requested the Runtime to terminate in an unusual way"

Hi StuartPosin,

Use the System File Checker tool (SFC.exe) to replace the file. To do this, follow these steps:

1.       Open an elevated command prompt. To do this, click Start, click All Programs, click Accessories, right-click Command Prompt, and then click Run as administrator. If you are prompted for an administrator password or for a confirmation, type the password, or click Allow.

2.       Type the following command, and then press ENTER:

sfc /scannow

3.       The sfc /scannow command scans all protected system files and replaces incorrect versions with correct Microsoft versions.

For more details follow the link given below.

How to use the System File Checker tool to troubleshoot missing or corrupted system files on Windows Vista or on Windows 7

http://support.microsoft.com/kb/929833

You may also try creating a new user account and check. To create a user account

1. To open User Accounts, click the Start button, click Control Panel, click User Accounts and Family Safety, and then click User Accounts.
2. Click Manage another account. If you're prompted for an administrator password or confirmation, type the password or provide confirmation.
3. Click Create a new account.
4. Type the name you want to give the user account, click an account type, and then click Create Account.

If the new user account works fine then the previous account was corrupt, you may follow the link given below to fix the corrupt user profile.

Fix a corrupted user profile

http://windows.microsoft.com/en-US/Windows7/Fix-a-corrupted-user-profile

Hope this information is helpful.

Amrita M

Microsoft Answers Support Engineer
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