Rvtools Unknown Error Stsservicedll Free |verified| Jun 2026
If the error persists, you can try to point the system manually to the library.
If none of the above work, consider using as an alternative for gathering vSphere inventory data, or test RVTools from a different Windows machine to isolate the issue.
What (e.g., 7.0, 8.0) and RVTools version you are currently running? The exact operating system of the machine hosting RVTools?
I can give you more targeted steps to resolve your specific issue. RVTools Returning Parsing Error rvtools unknown error stsservicedll free
If you see this error while running RVTools via a or Task Scheduler , ensure the service account has "Log on as a batch job" rights. Often, the "Unknown Error" is simply a masked "Access Denied" message because the script cannot initialize the DLL in a non-interactive session. To help you get back to your reports, could you tell me: Which vCenter version are you connecting to? What Windows OS is RVTools installed on? Are you running it manually or via a script ?
Follow these troubleshooting procedures to resolve the DLL error and restore reporting operations. 1. Execute an All-In-One Version Synchronization
To help narrow down the cause of the STSService.dll crash, please specify the of RVTools and vCenter you are currently running. If you are executing the tool via Remote Desktop Manager (RDM) , providing that version number will also help determine if an integration conflict is present. Share public link If the error persists, you can try to
If you are running a 64-bit OS, also navigate to: HKLM\SOFTWARE\Wow6432Node\Microsoft\.NETFramework\v4.0.30319 Create the same DWORD and set it to 1 .
After changing to the RVTools directory, run the command to launch the tool:
When you double-click RVTools.exe , it starts within its own installation directory. The application knows exactly where to find its supporting files, including STSService.dll . However, when you call RVTools.exe from a PowerShell script or a batch file using a full or relative path, the application's working directory is often not the RVTools folder itself. This can cause the program to search for STSService.dll in the wrong place and fail to find it. The exact operating system of the machine hosting RVTools
If you are running RVTools on a jump host or a management server that does not have the vCenter client installed, you will likely hit this error.
By systematically verifying your software version, securing the required .NET dependencies, and aligning your TLS protocols, you can eliminate the generic "Unknown Error" and resume seamless data collection.
Troubleshooting RVTools: Fixing the "Unknown Error stsservice.dll" and Keeping Your Site Free
As highlighted in Devolutions forum discussions , RVTools can fail if the password contains special characters like \ or spaces, especially when passed via command line.
Before diving into the error, it's helpful to understand what RVTools is. It's a free Windows-based utility used by IT professionals worldwide to gather, analyze, and report on their VMware vSphere environments. It provides a treasure trove of data on virtual machines, ESXi hosts, clusters, networking, and storage, all exportable to Excel for easy auditing and planning. Despite its unofficial status, it's a trusted, almost essential part of many IT toolkits. The application is built on the .NET Framework 4.7.2 and uses VMware's vSphere Management SDK 8.0 to connect to vCenter servers.