Creating a Certificate Signing Request Using Certreq.exe

Create a file named CSRParameters.inf on the C:\ drive using the contents below as a template (replace the single quotes with double quotes):

[NewRequest]
Subject="CN=mailgw.mango.com.bd,OU=IIG,O=Mango Teleservices Limited,S=Not Applicable,L=Dhaka,C=BD"
KeySpec=1
KeyLength=2048
Exportable=TRUE
MachineKeySet=TRUE
SMIME=False
PrivateKeyArchive=FALSE
UserProtected=FALSE
UseExistingKeySet=FALSE
ProviderName="Microsoft RSA SChannel Cryptographic Provider"
ProviderType=12
RequestType=PKCS10
KeyUsage=0xa0
Silent=TRUE
[EnhancedKeyUsageExtension]
OID=1.3.6.1.5.5.7.3.1

Open a command prompt and type in:

C:\>certreq -new CSRParameters.inf CSROutput.pem

Open Windows Explorer and browse to the C drive to locate the CSROutput.pem file

Using the CSROutput.pem file, go back to the certificate authority and use the file to request your certificate