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====== Int 21H, AH=69H ======

===== Input ======

 AH=69H, AL=Subfunction

^ Subfunction                        ^ Description                                       ^ Version ^
| [[en:docs:dos:api:int21:69:00|00]] | get serial number                                 | 4.0+    |
| [[en:docs:dos:api:int21:69:01|01]] | set serial number                                 | 4.0+    |


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