Failed to Import-Module MSOnline in ASP.NET - asp.net

Question

We have created a mini web program for running PowerShell in asp.net. the PowerShell command is running fine. but when we try to import the MSOnline module, it will be shown the following error:
Could not load file or assembly
'file:///C:\Windows\system32\WindowsPowerShell\v1.0\Modules\MSOnline\Microsoft.Online.Administration.Automation.PSModule.dll'
or one of its dependencies. An attempt was made to load a program with
an incorrect format.
Dim Ps As PowerShell = PowerShell.Create()
Dim tempScript As String = "Import-Module MSOnline " + Environment.NewLine
tempScript = tempScript + "$username = 'xxx#xxx.com' " + Environment.NewLine
tempScript = tempScript + "$password = 'abcd1234' " + Environment.NewLine
tempScript = tempScript + "$secureStringPwd = $password | ConvertTo-SecureString -AsPlainText -Force " + Environment.NewLine
tempScript = tempScript + "$creds = New-Object System.Management.Automation.PSCredential -ArgumentList $username, $secureStringPwd " + Environment.NewLine
tempScript = tempScript + "Connect-MsolService -Credential $creds " + Environment.NewLine
tempScript = tempScript + "Get-MsolDomain" + Environment.NewLine
Ps.Commands.AddScript(tempScript)
' Execute the script
Dim results = Ps.Invoke()
PS C:> $PSVersionTable | Out-String
Name Value
---- -----
PSVersion 4.0
WSManStackVersion 3.0
SerializationVersion 1.1.0.1
CLRVersion 4.0.30319.34209
BuildVersion 6.3.9600.17400
PSCompatibleVersions {1.0, 2.0, 3.0, 4.0}
PSRemotingProtocolVersion 2.2
Update : 3-Aug-2017
Try to use process.start to call a CMD, and then the cmd call a powershell, but it failed also. same error message.
Private Function RunBatch() As String
Dim proc As New Process
Dim strBuilder As StringBuilder = New System.Text.StringBuilder
proc.StartInfo.FileName = "C:\temp\enableMFA.bat"
proc.StartInfo.UseShellExecute = False
proc.StartInfo.RedirectStandardOutput = True
proc.Start()
proc.WaitForExit()
Dim output() As String = proc.StandardOutput.ReadToEnd.Split(CChar(vbLf))
For Each ln As String In output
strBuilder.Append(ln & vbNewLine + vbLf)
Next
Return strBuilder.ToString
End Function
Error Message:
C:\Users\admin\Desktop\Preview\Preview\bin\Debug>powershell -File
"C:\temp\enableMFA.ps1"
Import-Module : Could not load file or assembly
'file:///C:\Windows\system32\WindowsPowerShell\v1.0\Modules\MSOnline\Microsoft.Online.Administration.Automation.PSModule.dll'
or
one of its dependencies. An attempt was made to load a program with an
incorrect format.
At C:\temp\enableMFA.ps1:1 char:1
Import-Module MSOnline
~~~~~~~~~~~~~~~~~~~~~~
CategoryInfo : InvalidOperation: (:) [Import-Module], BadImageFormatException
FullyQualifiedErrorId : FormatXmlUpdateException,Microsoft.PowerShell.Commands.ImportModuleCommand

Answer 1

Finally fixed the issue by change the CPU to x64, this is the steps
Right click the project >> properties >> complie >> Target CPU to x64
Go to TOOLS >> Options >> Projects and Solutions >> Web Projects >> use 64bit IIS Express
** Remember close the VS2013 and open the project again **
** Thx for the hints from David Brabant**