Regsvr32.exe is installed in the %systemroot%\System32 folder in Windows XP and later versions of Windows. Note On a 64-bit version of Windows operating system, there are two versions of the Regsv32.exe file:

Description of the Security and Quality Rollup updates for .NET Framework 4.5.2 for Windows 7 SP1, Server 2008 R2 SP1, and Server 2008 (KB 4338417)

Notice On July 23, 2020, update KB4565616 v2 was released to replace v1 for .NET Framework 4.5.2 for Windows 7 SP1 and Windows Server 2008 R2 SP1 and Windows Server 2008 SP2. The v1 update did not install for customers who had certain ESU configurations. The v2 update corrects the issue for customers who could not install the v1 update. If you have already installed KB4565616 v1, no action is ...

Notice How to obtain help and support for this security update Help installing updates: Support for Microsoft Update Security solutions for IT professionals: TechNet Security Troubleshooting and Support Help protect your computer that is running Windows from viruses and malware: Virus Solution and Security Center Local support according to your country: International Support Symptoms of the ...

Get Help has troubleshooters you can run for many common scenarios. These often help resolve issues without the need to contact support. If a troubleshooter is available for your issue, select Run to start that troubleshooter. Windows troubleshooters Get Help has troubleshooters, or diagnostic tests, that can check your system configuration for anything that might be causing issues using your ...

The Program Install and Uninstall troubleshooter helps you automatically repair issues when you're blocked from installing or removing programs.

Description of the Security and Quality Rollup for the .NET Framework 4.5.2 for Windows 7 SP1, Windows Server 2008 R2 SP1 and Windows Server 2008 SP2 (KB 4054995)

Security and Quality Rollup for .NET Framework 4.5.2 for Windows 7 SP1 and Windows Server 2008 R2 SP1 and Windows Server 2008 SP2 (KB4578955)

aspnet_regiis.exe 4.0.30319.36415 41,080 29-Mar-2018 16:32 aspnet_regsql.exe 4.0.30319.36415 127,096 29-Mar-2018 16:32 aspnet_regsql.exe 4.0.30319.36415 127,608 29-Mar-2018 16:32 aspnet_state.exe 4.0.30319.36415 50,808 29-Mar-2018 16:32 aspnet_state.exe 4.0.30319.36415 45,688 29-Mar-2018 16:32 aspnet_wp.exe 4.0.30319.36430 47,712 29-Mar-2018 16 ...

Security and Quality Rollup for .NET Framework 4.5.2 for Windows 7 SP1 and Server 2008 R2 SP1 and Windows Server 2008 SP2 (KB4507001)