MailEnable Administrator console:Unable to load DLL 'MEAISO.DLL': The specified module could not be found. (Exception from HRESULT: 0x8007007E)

Symptoms

Unable to open MailEnable Administrator console, the following error appears:

Unable to load DLL 'MEAIPO.DLL': The specified module could not be found. (Exception from HRESULT: 0x8007007E)
Unable to load DLL 'MEAISO.DLL': The specified module could not be found. (Exception from HRESULT: 0x8007007E)

Cause

Missed MailEnable related environment variable in path .

Resolution

Add environment variable path by following the below steps:

1. Open Server Properties > Change Settings > Advanced System Settings > Environment Variables
2. Select path in System Variables > Edit
3. Add path C:\\Program Files (x86)\\Parallels\\Plesk\\Mail Servers\\Mail Enable\\Bin64;C:\\Program Files (x86)\\Parallels\\Plesk\\Mail Servers\\Mail Enable\\Bin
4. Restart all related MailEnable services.