How do I import a GnuPG private PGP key into Symantec PGP commandline?

I am trying to import a private PGP key into Symantec PGP command line that originated in GnuPGP (1.4.11 AIX) into a Windows system.

When I do a pgp --import private.asc, then do a pgp --list-keys --details I get an invalid key:

C:\Program Files\PGP Corporation\PGP Command Line>pgp --list-keys --details
Key Details: Bank (Joint key) <user@company.com>
     Key ID: 0x4aaaa8 (0x09aaaaaB8)
       Type: RSA (v4) key pair
       Size: 2048
   Validity: Invalid
      Trust: Never (Not axiomatic)
    Created: 2014-02-26
    Expires: 2016-01-17
     Status: Active
     Cipher: AES-256
     Cipher: AES-192
     Cipher: AES-128
     Cipher: CAST5
     Cipher: TripleDES
       Hash: SHA-256
       Hash: SHA-1
       Hash: SHA-384
       Hash: SHA-512
       Hash: Unknown 0x0B
   Compress: ZLIB
   Compress: BZIP2
   Compress: Zip
      Photo: No
  Revocable: Yes
      Token: No
  Keyserver: Absent
    Default: Yes
    Wrapper: No
 Prop Flags: Sign user IDs
 Prop Flags: Sign messages
 Prop Flags: PGP NetShare
 Prop Flags: PGP WDE
 Prop Flags: PGP ZIP
 Prop Flags: PGP Messaging
 Ksrv Flags: No modify
 Feat Flags: Modification detection
  Notations: None
      Usage: Sign user IDs
      Usage: Sign messages

  Subkey ID: 0xFbbbb5 (0x96bbbb75)
       Type: RSA (v4) subkey pair
       Size: 2048
    Created: 2014-02-26
    Expires: 2019-01-17
     Status: Active
  Revocable: Yes
      Token: No
      X.509: No
 Prop Flags: Encrypt communications
 Prop Flags: Encrypt storage
 Prop Flags: PGP NetShare
 Prop Flags: PGP WDE
 Prop Flags: PGP ZIP
 Prop Flags: PGP Messaging
  Notations: None
      Usage: Encrypt communications
      Usage: Encrypt storage
      Usage: PGP NetShare
      Usage: PGP WDE
      Usage: PGP ZIP
      Usage: PGP Messaging

        ADK: None

    Revoker: None

1 key found

Question

• What is a "Joint Key", and should a PGP private key be "joint"


• Is there any way I can tell if the ASC is expecting "wrapped" syntax?


• How do I import a private key from Aix?