| USS - UNIX SYSTEM SERVICES APARs | 
| z/OS V1 R6 | 
| APAR # | PTF # | APAR Description | Notes | 
| OA12233 | UA19359 | 0C4 REBINDING A DLL FROM AN HFS TO A PDS/E | Problem occurs when customising Xerces | 
| z/OS V1 R5 | 
| APAR # | PTF # | APAR Description | Notes | 
| OA12233 | UA19358 | 0C4 REBINDING A DLL FROM AN HFS TO A PDS/E | Problem occurs when customising Xerces | 
| z/OS V1 R4 | 
| APAR # | PTF # | APAR Description | Notes | 
| OA12233 | UA19357 | 0C4 REBINDING A DLL FROM AN HFS TO A PDS/E | Problem occurs when customising Xerces | 
| z/OS V1 R3 | 
| APAR # | PTF # | APAR Description | Notes | 
| OW52581 | UW85748 | INCORRECT MESSAGE IEW2818W '0' IS NOT A KNOWN USERID OR NAME | When invalid UID or GID is supplied, messages IEW2817 or IEW2818 are issued. In some cases, these messages are generated due to a non-zero return code from some USS call | 
| z/OS V1 R2 | 
| APAR # | PTF # | APAR Description | Notes | 
| OW42735 | UW80958 | C89 CHANGES FOR IPA AND MISCELLANEOUS CUSTOMER REQUIREMENTS | A number of deficiencies were identified in the c89/cc/c++(cxx) interface to IPA, which impeded flexibility when using IPA | 
| OW51314 | UW83949 | INCORRECT MESSAGE IEW2818W '0' IS NOT A KNOWN USERID OR NAME | When invalid UID or GID is supplied, messages IEW2817 or IEW2818 are issued. In some cases, these messages are generated due to a non-zero return code from some USS call | 
| OS/390 V2 R10 | 
| APAR # | PTF # | APAR Description | Notes | 
| OW42735 | UW80957 | C89 CHANGES FOR IPA AND MISCELLANEOUS CUSTOMER REQUIREMENTS | A number of deficiencies were identified in the c89/cc/c++(cxx) interface to IPA, which impeded flexibility when using IPA | 
| OW43363 | UW69596 | CHARACTER SPECIAL FILES /DEV/FDN NOT DYNAMICALLY CREATED VIA SER PROGRAM. | The /dev/ttypNNNN,/dev/ptypNNNN, and /dev/fdN...N files are incorrectly being created as regular files when O_CREAT is specified. | 
| OW44655 | UW74957 | NEW FUNCTION - ENHANCED PROGRAM CONTROL | Provide Enhanced Program Control and HFSCTL support. Installing all pre-req & co-req APARs will improve the messages and function of the Enhanced Program Control support. | 
| OW51314 | UW83949 | INCORRECT MESSAGE IEW2818W '0' IS NOT A KNOWN USERID OR NAME | When invalid UID or GID is supplied, messages IEW2817 or IEW2818 are issued. In some cases, these messages are generated due to a non-zero return code from some USS call |