>Hi,
>I am working in VFP6 on Win95. I was working on a project. Recently I got the CD for SP4 and I installed it. Now whenever I create a form, or even a new project I am getting the following error msg.
>"Error instantiating class. Cant find _container in _base.vcx."
>Before the installation of SP4 I didnt hv this problems.

It seems really weird that the _container class would have been removed from the library containing the canned foundation classes. Here's a couple of things I'd try if I was having this problem.

1. Use Explorer Find File to search your hard drive for _base.vcx. If there are two or more of them, maybe VFP is using the wrong one. Use the class browser to open up the _base.vcx library and make sure that the _container class really isn't in there. If it is...I'm stumped. Depending on whether the CD is compressed or not, you may be able to find the _base.vcx library on the CD using the Class browser. If so, look to see if the _container class is there. If it is, then maybe just using windows to transfer that file to the appropriate folder on your hard drive will fix your problem.

2. Read the release notes for SP4 very carefully. There may be a direct reference to changes in the foundation classes (FFC) that are related to what you are seeing.

Hope this helps.