The document provides instructions to resolve the sshnas21.dll error by fixing the dll file, deleting malicious startup entries and files, and scanning for trojans. Specifically, it instructs the user to unregister and reregister the sshnas21.dll file using the command prompt, delete malicious startup entries from the registry, delete specific malicious files from the Windows and System32 folders, and scan the computer for trojans using antivirus software.

1. Following are some of the error messages that
are commonly displayed:
-- Error loading
C:WindowsSystem32sshnas21.dll
-- This application failed to start because
sshnas21.dll was not found. Re-installing the
application may fix this problem.
Fix Sshnas21.Dll Error

2. Unregister and Reregister the DLL
File
Each DLL file has its registry entries. These registry entries are retrieved by
Windows and applications from time to time. Unregister and reregister the files
with Command Prompt.
For Windows 8.1/ 8:
Press Windows Key + X.
Click “Command Prompt (Admin)”
Type below command:
regsvr32 -u C:WindowsSystem32 sshnas21.dll
regsvr32 C:WindowsSystem32 sshnas21.dll
Press ENTER.
For Earlier Versions of Windows:
Click the Start button, point to All Programs | Accessories.
Right click Command Prompt.
Choose “Run as administrator”.
Refer Steps # 3-4 from Windows 8.1/ 8 user’s paragraph.

3. Delete Malicious Startup Entries
The Trojan has its startup entries in the Registry. Delete all the malicious
startup entries as shown below:
For Windows 8.1/ 8 and Earlier Versions:
Press Windows Key + R.
Type “RegEdit” in the Search Box.
Click OK or press ENTER.
These are the sub keys containing startup entries. Locate them one by
one.
HKEY_CURRENT_USERSoftwareMicrosoftWindowsCurrentVersion
Run
HKEY_LOCAL_MACHINESoftwareMicrosoftWindowsCurrentVersion
Run
HKEY_CURRENT_USERSoftwareMicrosoftWindowsCurrentVersion
RunOnce
HKEY_LOCAL_MACHINESoftwareMicrosoftWindowsCurrentVersion
RunOnce
Delete all strings that have “C:WindowsSystem32sshnas21.dll” as the
target file destination.
Following are the string names. If you found any of them please delete
them. LosAlamos,VideoHost,Halo2,SSHNAS

4. Delete Malicious Files
Here is list of some files that are detected as Trojan. Resolve sshnas21.dll error by deleting
the malicious files.
For Windows 8.1/ 8 and Earlier Versions:
Double click Computer desktop icon.
Locate the following directory:
C:Windows
Delete “msa.exe” file.
Locate the following directory:
C:WindowsSystem32
Delete the following files:
Sshnas.dll, sshnas21.dll
Locate the following directory:
C:WindowsTasks
Delete the following files:
{66BA574B-1E11-49b8-909C-8CC9E0E8E015}.job
{35DC3473-A719-4d14-B7C1-FD326CA84A0C}.job
Reboot your computer.

5. Scan for Trojans
A Trojan is described as a type of virus which is
non-self-replicating in nature. It hides its user
interface and performs malicious actions in the
background.
Sshnas21.Dll error appears when your computer
is infected by a Trojan horse. You may have
visited untrustworthy websites and downloaded
some malicious content. Scan for Trojans and
remove them.

6. For Windows 8.1/ 8 and Earlier
Versions:
Download a powerful Antivirus and security
software.
Update virus definitions.
Scan all drives- storage disk, removable media
and network connections, if any.
Delete Trojans and viruses detected in the
system.
Use RegInOut