How To Fix COM Surrogate Has Stopped Working in Windows 7
Solution 1. Update Codecs  This error is often caused because of codecs and other COM components installed by various applications that aren’t fully compatible with Windows 7, like some versions of Nero or DivX. So I highly recommended you should update codec, it can help you get rid of the COM Surrogate error.
Solution 2. Uninstall Nero, DivX, Adobe Photoshop CS3 Many Windows 7 users have reported that versions of Adobe CSX and other programs like DivX, Nero can cause the DllHost.exe error. If you recently installed some new program, I highly recommended you uninstall and then reinstall it later on. If you’re not sure what software could be causing the issue, I will show you how to use the Reliability Monitor in Windows 7 to figure it out. To do that, follow these steps below: Step 1. Go to Control Panel > System and Security > Action Center > Reliability Monitor.
Step 2. Next you click View all problem reports at the bottom to open the Problem Report screen. Step 3. Now you look for the crash report that has COM Surrogate in the source then rightclick on it and select View Technical Details. You check out the entry that shows Fault Module Name as that often tells you which software caused the error.
Solution 3. Disable DEP or Add Exception
Another solution to fix this problem is to disable DEP (Data Execution Prevention). To do that, follow the steps:
Step 1. Click the Start button.
Step 2. Right-click on Computer, select Properties and click Advanced system settings.
Step 3. Then you switch to the Advanced tab. In the Performance section, click Settings.
Step 4. Select Data Execution Protection tab, and then select the Turn on DEP for all programs and services except those I select: option.
Step 5. Next, you click the Add button, and then browse to:
C:\Windows\System32\dllhost.exe
Click Open, click OK on the warning message.
Step 6. Lastly, you click Apply>OK to save changes.