Monday, February 22, 2010

VC package not available or not registered winform application

When you trying to create a winform application you may receive the following error message.

"VC Package not available or not registered"

The error is comming because the windows installer does not register TLBs and DLLs if the installer finds these items are already exists. In most cases, a previous version of Visual Studio .NET or Visual Studio 2005 causes this behavior, even if the previous installation was under a different operating system.

To solve this problem you have to repair visual studio .net because the repair process forces registration of items that are not re-registered during an install. To run repair follow the following steps.

1. Start -> Settings -> Control panel -> Add/Remove Programs.

2. Then the list of installed programs will poppulate.

3. Find and click on visual studio .net 2005 and click change.

4. Insert the product CD. If an installation wizard starts, cancel the wizard, and then proceed with the repair as outlined in the following step. If the product CD is not inserted before the next step, the CD may not be recognized.

5. Click Repair/Re-install, and then follow the onscreen instructions.

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