Impersonation with different machine's account (remote user) - c#-4.0

Question

Is it possible to logon to different machine's account with impersonation? I have to access the folder and read its contents temporarily. After reading process program will revert back to old account which has no access to that folder. I am able to impersonate with different account under same domain and it works. However, I have to update my code for accessing to different machine. I want to modify this code:
public WindowsImpersonationContext ImpersonateUser(string sUsername, string sDomain, string sPassword)
{
// initialize tokens
IntPtr pExistingTokenHandle = new IntPtr(0);
IntPtr pDuplicateTokenHandle = new IntPtr(0);
pExistingTokenHandle = IntPtr.Zero;
pDuplicateTokenHandle = IntPtr.Zero;
// if domain name was blank, assume local machine
if (sDomain == "")
sDomain = System.Environment.MachineName;
try
{
string sResult = null;
const int LOGON32_PROVIDER_DEFAULT = 0;
// create token
const int LOGON32_LOGON_INTERACTIVE = 2;
//const int SecurityImpersonation = 2;
// get handle to token
bool bImpersonated = LogonUser(sUsername, sDomain, sPassword,
LOGON32_LOGON_INTERACTIVE, LOGON32_PROVIDER_DEFAULT, ref pExistingTokenHandle);
// did impersonation fail?
if (false == bImpersonated)
{
int nErrorCode = Marshal.GetLastWin32Error();
sResult = "Error while logging. Error Code: " + nErrorCode + "\r\n";
// show the reason why LogonUser failed
MessageBox.Show(this, sResult, "Hata", MessageBoxButtons.OK, MessageBoxIcon.Error);
return null;
}
// Get identity before impersonation
sResult += "Before impersonation: " + WindowsIdentity.GetCurrent().Name + "\r\n";
bool bRetVal = DuplicateToken(pExistingTokenHandle, (int)SECURITY_IMPERSONATION_LEVEL.SecurityImpersonation, ref pDuplicateTokenHandle);
// did DuplicateToken fail?
if (false == bRetVal)
{
int nErrorCode = Marshal.GetLastWin32Error();
CloseHandle(pExistingTokenHandle); // close existing handle
sResult += "DuplicateToken() failed with error code: " + nErrorCode + "\r\n";
// show the reason why DuplicateToken failed
MessageBox.Show(this, sResult, "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
return null;
}
else
{
// create new identity using new primary token
WindowsIdentity newId = new WindowsIdentity(pDuplicateTokenHandle);
WindowsImpersonationContext impersonatedUser = newId.Impersonate();
// check the identity after impersonation
sResult += "After impersonation: " + WindowsIdentity.GetCurrent().Name + "\r\n";
MessageBox.Show(this, sResult, "Success", MessageBoxButtons.OK, MessageBoxIcon.Information);
return impersonatedUser;
}
}
catch (Exception ex)
{
throw ex;
}
finally
{
// close handle(s)
if (pExistingTokenHandle != IntPtr.Zero)
CloseHandle(pExistingTokenHandle);
if (pDuplicateTokenHandle != IntPtr.Zero)
CloseHandle(pDuplicateTokenHandle);
}
}