Windows 7 Forums
Welcome to Windows 7 Forums. Our forum is dedicated to helping you find support and solutions for any problems regarding your Windows 7 PC be it Dell, HP, Acer, Asus or a custom build. We also provide an extensive Windows 7 tutorial section that covers a wide range of tips and tricks.

Windows 7: .NET runtime optimization service

05 May 2012   #1

Windows 7 Home Premium 64-bit
.NET runtime optimization service

I have a Critical Event in Applications. The faulting application is mscorsvw.exe. During a search of my computer I found a duplicate of the file in in the same path, the only difference was the size.

Upon trying to open each of the two files, I discovered that neither would open and both are application files. Looking at Properties I discovered the the files are the .NET Runtime Optimization service. Upon looking in Services, I discovered that .NET Runtime Optimization is not mentioned..

My question is: how to fix the application error?

All assistance will be appreciated.


My System SpecsSystem Spec
11 May 2012   #2

Windows 10 x64

Windows Update released some .NET updates just the other day. Have they been applied yet? If not force an update by going to Control Panel / Windows Update / Check for updates.
My System SpecsSystem Spec
12 May 2012   #3

Windows 7 Home Premium 64-bit

There were four updates for .NET and I installed them all. Do you think that will fix the problem and answer my question?
My System SpecsSystem Spec


 .NET runtime optimization service

Thread Tools

Similar help and support threads
Thread Forum
Microsoft Visual C++ Runtime Library - Runtime Error!
Hi everyone. I have a runtime error every time I try to load my SnapPea program, which I use to connect my android phone to my PC, to add photos. music, etc. It was working fine 2 days ago and I don't know why this is happening. I would really appreciate any help and I have attached the error...
BSOD Help and Support
Microsoft Visual C++ Runtime Library Runtime Error" error message
What do I need in order to fix this problem? This pop-up message appears when I patched my game
General Discussion
Runtime error this application has requested the Runtime to terminate
Hello, I hope someone can help. I have been using Cucusoft YouTube Mate for a long time and suddenly today I get this message: runtime error "this application has requested the Runtime to terminate it in an unusual way" I'm not very computer smart and I don't understand why this has...
General Discussion
Windows 7 Service Pack installed OK but had a Runtime error
I have just downloaded and installed Service Pack 1 for Windows 7 from the Windows Update site. It certainly took much longer than half an hour to complete and when the download reached 93% I was presented with the following information / warning window headed ..... Microsoft Visual C++...
Windows Updates & Activation
Do I need Net Runtime Optimization Service?
Hope this is in right section and you can educate me.:) TBAH I haven,t any idea what the service is for. As a single computer user connected by Ethernet do I need the service active? would your answer be the same if BBC IPlayer were in use with wireless or Homeplug connection?
General Discussion
W7 Optimization
Hi i've visited this forum several times to look for clues on how to fix problems with my computer and finally decided to sign up cause it looks like a great forum anyways im having speed troubles like i guess many others are and i've actually been thinking about switching back to XP but i like...
Performance & Maintenance

Our Sites

Site Links

About Us

Find Us

Windows 7 Forums is an independent web site and has not been authorized, sponsored, or otherwise approved by Microsoft Corporation. "Windows 7" and related materials are trademarks of Microsoft Corp.

Designer Media Ltd

All times are GMT -5. The time now is 05:08.
Twitter Facebook Google+ Seven Forums iOS App Seven Forums Android App