Could not load file or assembly System.EnterpriseServices.wrapper.dll

Question

sql server management studio 18.9.1, try to connect to database engine, report error:

Could not load file or assembly " System.EnterpriseServices.wrapper.dll" or one of it's dependencies. The system file can not find the file specified."

fix ssms install,failed
uninstall and reinstall ssms,failed
uninstall and reinstall .net framework 4.8\2.0,failed

Answer 1

Hi YoungWeichen-2283,

Welcome to Microsoft Q&A. Could you please try to copy the file "System.EnterpriseServices.Wrapper.dll" from C:\WINDOWS\Microsoft.NET\Framework\v2.0.50727 to C:\WINDOWS\ WinSxS\x86_System.EnterpriseServices_b03f5f7f11d 50a3a_2.0.0.0_x-ww_7d5f3790, restart the computer and reinstall SSMS? And please try to update your windows version to newest one.

To uninstall SSMS, please: 1) Removed "C:\Program Files (x86)\Microsoft SQL Server Management Studio 18" folder 2) Deleted registry key "HKLM\SOFTWARE\WOW6432Node\Microsoft\Microsoft SQL Server Management Studio"(please backup registry key first) 3)Restart the computer

Please refer to this thread which might help.

Best Regards, Amelia

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Answer 2

there is no directory x86_System.EnterpriseServices_b03f5f7f11d 50a3a_2.0.0.0_x-ww_7d5f3790，so create it then coyp file System.EnterpriseServices.Wrapper.dll.

uninstall ssms from add and revome programe

restart the computer,install ssms

the program still exists.

Answer 3

Hi YoungWeiChen-2283,
Thanks for your reply.
Do you have any folder named x86_system.enterpriseservices_b03f5f7f11d50a3a_xxxxxxxx in C:\WINDOWS\ WinSxS ?
What the version of OS are you using?
Have you tried to install SSMS 17.9 instead?

Best regards,
Amelia

Answer 4

Do you have any folder named x86_system.enterpriseservices_b03f5f7f11d50a3a_xxxxxxxx in C:\WINDOWS\ WinSxS ?
Yes

win10 21H1

ssms 17.9.1, The problem is still。

Answer 5

Hi YoungWeichen-2283,
Could you please try to copy the file "System.EnterpriseServices.Wrapper.dll" from C:\WINDOWS\Microsoft.NET\Framework\v2.0.50727 to C:\WINDOWS\ WinSxS\x86_system.enterpriseservices_b03f5f7f11d50a3a_10.0.19041.1_xxxxxx?
The System.EnterpriseServices.Wrapper.dll in x86_system.enterpriseservices_b03f5f7f11d50a3a_10.0.19041.1_xxxxxx folder may be corrupted.

Best Regards,
Amelia