To resolve this issue, download and run the repair tool mentioned below, repair .NET Framework 2.0, and download and reinstall .NET 2.0 SP1. Select the option for your Windows operating system. The instructions for Windows Vista follow the instructions for Windows XP.

1. Download the following tool for your version of Windows to repair the damage to the computer's registry:
   
   
   • 32 bit: http://sharedldfp.intuit.com/pub/quickbooks/X86/clwireg.exe
   • 64 bit: http://sharedldfp.intuit.com/pub/quickbooks/X64/clwireg.exe
     
     If you are unsure which version to download, refer to "How to determine whether your computer is running a 32-bit version or a 64-bit version of the Windows operating system."
     
2. Double-click the clwireg.exe file to run the tool.
   • You will receive the following message when the tool completes: The Microsoft .NET Framework 2.0 Registration Correction Tool completed successfully. Click OK. If you receive this message, proceed to step 3 directly below.
   • If you receive a message stating that Installation source could not be found, the tool did not work. Please go to IF THE TOOL DOES NOT RESOLVE YOUR ISSUE.
     
3. Repair Microsoft .NET Framework 2.0:
   1. Click the Windows Start button, select Settings, and click Control Panel.
   2. Double-click the Add or Remove Programs icon.
   3. In the list of programs, select Microsoft .NET Framework 2.0.
   4. Click the Change/Remove button.
   5. Follow the instructions to Repair .NET Framework 2.0.
      
4. Download and install Microsoft .Net Framework 2.0 SP1 from the Microsoft Web site:
   
   • 32 bit version: Microsoft .NET Framework 2.0 Service Pack 1 (x86)
   • 64 bit version: Microsoft .NET Framework 2.0 Service Pack 1 (x64)
     
5. Open QuickBooks.

IF THE TOOL DOES NOT RESOLVE YOUR ISSUE:

If the issue still occurs, or if there were any errors when trying the prior steps, please follow these steps to uninstall .NET Framework 2.0 and reinstall .NET Framework 2.0 with Service Pack 1.

Uninstall and reinstall Microsoft .Net Framework 2.0:

1. Click the Windows Start button and select Run.
2. Enter control in the Open field and click OK.
3. Double-click Add or Remove Programs.
4. Select Microsoft .NET Framework 2.0 in the list of programs and click Remove.
   
   If you are unable to remove .NET using these instructions, download and run the dotnetfx_cleanup_tool utility to remove .NET 2.0, download .NET 2.0 SP1 from the links below, and reinstall Microsoft .NET Framework 2.0 SP1.
   
   Click here to download the dotnetfx_cleanup_tool.
   
   Click here to read more about the tool.
   
5. Download and install Microsoft .Net Framework 2.0 SP1 from the Microsoft Web site:
   
   • 32 bit version: Microsoft .NET Framework 2.0 Service Pack 1 (x86)
   • 64 bit version: Microsoft .NET Framework 2.0 Service Pack 1 (x64)
     
6. Open QuickBooks.

Watch XP Video:

Watch a short demonstration of how uninstall and reinstall .NET in Windows XP

Print a version of the XP video. This is a several page printout of the video screens.

Instructions for Windows Vista

.NET Framework 2.0 is built in to the Windows Vista operating system. Because of this, it cannot be uninstalled from Vista. To repair .NET Framework 2.0, follow the steps below to run the System File Checker tool:

1. Click Start, and then type cmd in the Start Search box. Do not press Enter
2. Right-click cmd.exe in the Programs list in the search results, and then click Run as administrator.
   If you are prompted for an administrator password or confirmation, type your password or click Continue.
3. At the command prompt, type sfc /scannow and then press ENTER.
4. After the tool has finished running, double-click the QuickBooks icon.

Watch Vista video:

Watch a short demonstration of how to resolve this issue in Windows Vista

Print a version of the Vista video. This is a several page printout of the video screens.

System File Checker

For more information about using the System File Checker, refer to the following Microsoft knowledge base articles:

Windows Vista: "How to repair the operating system and how to restore the operating system configuration to an earlier point in time in Windows Vista."