Windows error 0x80090006, -2146893818

Operating system error 0x80090006(Invalid Signature) by Scheduled Backup TFS 2015

I have a Windows Server 2012 R2 with TFS 2015 Update 2 installed. I configured Scheduled backups in TFS Administration Console. When I manually take a full backup, everything works and the backupfiles are nicely dropped on a networkshare. However, the automatic backup (at night) fails. From the event viewer: [...] read more

Why does SSIS package fail with invalid signature after migration?

My office just migrated from SQL Server 2008R2 to SQL Server 2017. We converted just under 100 SSIS packages to the 2017 format. We have many of these being triggered by SQL jobs. The large majority of these are running fine after the migration. However, we have a handful (maybe [...] read more

Verify rsa signature with CryptoApi

I'm trying to calculate message rsa signature in python 2 code using rsa or pyopenssl package and verify it with microsoft CryptoApi. Unfortunately, CryptVerifySignature is always reporting error 0x80090006: Invalid signature. My python code: import rsa from OpenSSL import crypto private_key = "-----BEGIN RSA PRIVATE KEY-----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\n0wxp8BFWEs5YAWWNw82ft5yOg81MH1n8iCIHzWTKrw==\n-----END RSA PRIVATE KEY-----\n" message [...] read more

Unable to verify the Signed Hash in C++ from VB.Net

My requirement is to verify the signed hash in my C++ application which was earlier signed in VB.Net ! I ll briefly explain you what I did to achieve it.. First of all I created a Private/Public Key Pair with CspParameters.KeyNumber value = "Signature" and exported its CspBlob to a [...] read more

Cloned Windows VM unable to sysprep

I've cloned 300+ VMs from existing environment to new farm as a Production VM without an error. Once I clone one of them from production to another farm (for a DR site), when I run the sysprep it failed with error a fatal error while trying to sysprep the machine [...] read more

IISAdmin won't start, error 0x80090006 - how to troubleshoot further?

A while back my Windows Server 2003 machine hung up and I needed to force-reboot by power-cycling it. When it was restarting it ran chkdsk, and chkdsk reported some problems. Since then IISAdmin has not been able to start (which means that IIS doesn't work at all): C:\WINDOWS\system32>sc query iisadmin [...] read more

C# Starting Powershell ps1 File in batch with Process.Start()

I have a problem with starting a powershell inside a batch script with C#: I wan't to replace the EnvironmentVariable "CLIENTNAME"for the Process so i did it like this: ProcessStartInfo pi = new ProcessStartInfo(); pi.FileName = Environment.ExpandEnvironmentVariables("test.bat"); pi.UseShellExecute = false; pi.EnvironmentVariables["clientname"] = clientname; Process.Start(pi); My "test.bat" looks like this: powershell [...] read more

C++ application crashes in a 64 bit version of windows but works fine on 32 bit windows

So I have a Visual C++ application, in my code I use the CoCreateInstance function which is used to create a COM object and get an interface from the object: https://msdn.microsoft.com/en-us/library/windows/desktop/ms686615(v=vs.85).aspx This function: hr = CoCreateInstance(CLSID_CppCmnBL, NULL, CLSCTX_INPROC_SERVER, IID_ICppCmnBL, reinterpret_cast<void**>(&m_pBL)); Works fine on a 32 bit version of windows but [...] read more

Error when trying to run cvs through Runtime.exec()

I usually use WinCVS, but I'm trying to write a Java app to automate some of the build/deployment tasks. If I run cvs -n update from the command line, I get the results of the query. If I run it via Runtime.exec() I get the below error. Any ideas? Running [...] read more