The following shows the numerical value of an error, its symbolic name, and a brief description of the error.

100 ERROR_TOO_MANY_SEMAPHORES

User/system open semaphore limit reached.
101 ERROR_EXCL_SEM_ALREADY_OWNED
Exclusive semaphore already owned.
102 ERROR_SEM_IS_SET
DosCloseSem found semaphore set.
103 ERROR_TOO_MANY_SEM_REQUESTS
Too many exclusive semaphore requests.
104 ERROR_INVALID_AT_INTERRUPT_TIME
Operation at interrupt time is not valid.
105 ERROR_SEM_OWNER_DIED
Previous semaphore owner ended without freeing semaphore.
106 ERROR_SEM_USER_LIMIT
Semaphore limit exceeded.
107 ERROR_DISK_CHANGE
Insert drive B disk into drive A.
108 ERROR_DRIVE_LOCKED
Drive locked by another process.
109 ERROR_BROKEN_PIPE
Write on pipe with no reader.
110 ERROR_OPEN_FAILED
Open/create failed due to explicit fail command.
111 ERROR_BUFFER_OVERFLOW
Buffer passed to system call too small to hold return data.
112 ERROR_DISK_FULL
Not enough space on the disk.
113 ERROR_NO_MORE_SEARCH_HANDLES
Cannot allocate another search structure and handle.
114 ERROR_INVALID_TARGET_HANDLE
Target handle in DosDupHandle is not valid.
115 ERROR_PROTECTION_VIOLATION
User virtual address is not valid.
116 ERROR_VIOKBD_REQUEST
Error on display write or keyboard read.
117 ERROR_INVALID_CATEGORY
Category for DevIOCtl not defined.
118 ERROR_INVALID_VERIFY_SWITCH
Value passed for verify flag is not valid.
119 ERROR_BAD_DRIVER_LEVEL
Level four driver not found.
120 ERROR_CALL_NOT_IMPLEMENTED
Function called is not valid.
121 ERROR_SEM_TIMEOUT
Time-out occurred from semaphore API function.
122 ERROR_INSUFFICIENT_BUFFER
Data buffer too small.
123 ERROR_INVALID_NAME
Illegal character or file-system name is not valid.
124 ERROR_INVALID_LEVEL
Level for information retrieval or setting is not valid.
125 ERROR_NO_VOLUME_LABEL
No volume label found with DosQueryFSInfo function.
126 ERROR_MOD_NOT_FOUND
Module handle not found with DosQueryProcAddr(), DosQueryModAddr().
127 ERROR_PROC_NOT_FOUND
Procedure address not found with DosQueryProcAddr().
128 ERROR_WAIT_NO_CHILDREN
DosWaitChild finds no children.
129 ERROR_CHILD_NOT_COMPLETE
DosWaitChild children not ended.
130 ERROR_DIRECT_ACCESS_HANDLE
Handle operation is not valid for direct disk-access handles.
131 ERROR_NEGATIVE_SEEK
Attempting seek to negative offset.
132 ERROR_SEEK_ON_DEVICE
Application trying to seek on device or pipe.
133 ERROR_IS_JOIN_TARGET
Drive has previously joined drives.
134 ERROR_IS_JOINED
Drive is already joined.
135 ERROR_IS_SUBSTED
Drive is already substituted.
136 ERROR_NOT_JOINED
Cannot delete drive that is not joined.
137 ERROR_NOT_SUBSTED
Cannot delete drive that is not substituted.
138 ERROR_JOIN_TO_JOIN
Cannot join to a joined drive.
139 ERROR_SUBST_TO_SUBST
Cannot substitute to a substituted drive.
140 ERROR_JOIN_TO_SUBST
Cannot join to a substituted drive.
141 ERROR_SUBST_TO_JOIN
Cannot substitute to a joined drive.
142 ERROR_BUSY_DRIVE
Specified drive is busy.
143 ERROR_SAME_DRIVE
Cannot join or substitute a drive to a directory on the same drive.
144 ERROR_DIR_NOT_ROOT
Directory must be a subdirectory of the root.
145 ERROR_DIR_NOT_EMPTY
Directory must be empty to use join command.
146 ERROR_IS_SUBST_PATH
Path specified is being used in a substitute.
147 ERROR_IS_JOIN_PATH
Path specified is being used in a join.
148 ERROR_PATH_BUSY
Path specified is being used by another process.
149 ERROR_IS_SUBST_TARGET
Cannot join or substitute a drive that has a directory that is the target of a previous substitute.
150 ERROR_SYSTEM_TRACE
System trace error.
151 ERROR_INVALID_EVENT_COUNT
DosWaitMuxWaitSem errors.
152 ERROR_TOO_MANY_MUXWAITERS
System limit of 100 entries reached.
153 ERROR_INVALID_LIST_FORMAT
List format is not valid.
154 ERROR_LABEL_TOO_LONG
Volume label too big.
155 ERROR_TOO_MANY_TCBS
Cannot create another TCB.
156 ERROR_SIGNAL_REFUSED
Signal refused.
157 ERROR_DISCARDED
Segment is discarded.
158 ERROR_NOT_LOCKED
Segment is not locked.
159 ERROR_BAD_THREADID_ADDR
Thread-identity address is not valid.
160 ERROR_BAD_ARGUMENTS
Environment pointer is not valid.
161 ERROR_BAD_PATHNAME
Path name is not valid.
162 ERROR_SIGNAL_PENDING
Signal already pending.
163 ERROR_UNCERTAIN_MEDIA
Error with INT 24 mapping.
164 ERROR_MAX_THRDS_REACHED
No more process slots.
165 ERROR_MONITORS_NOT_SUPPORTED
Error with INT 24 mapping.
166 ERROR_UNC_DRIVER_NOT_INSTALLED
Default redirection return code.
167 ERROR_LOCK_FAILED
Locking failed.
168 ERROR_SWAPIO_FAILED
Swap I/O failed.
169 ERROR_SWAPIN_FAILED
Swap in failed.
170 ERROR_BUSY
Segment is busy.
171-172 Reserved.
173 ERROR_CANCEL_VIOLATION
A lock request is not outstanding for the specified file range, or the range length is zero.
174 ERROR_ATOMIC_LOCK_NOT_SUPPORTED
The file-system driver (FSD) does not support atomic lock operations. Versions of OS/2 prior to version 2.00 do not support atomic lock operations.
175 ERROR_READ_LOCKS_NOT_SUPPORTED
The file system driver (FSD) does not support shared read locks.
176-179 Reserved.
180 ERROR_INVALID_SEGMENT_NUMBER
Segment number is not valid.
181 ERROR_INVALID_CALLGATE
Callgateisnotvalid .
182 ERROR _ INVALID _ ORDINAL
Ordinalisnotvalid .
183 ERROR _ ALREADY _ EXISTS
Sharedsegmentalreadyexists .
184 ERROR _ NO _ CHILD _ PROCESS
Nochildprocesstowaitfor .
185 ERROR _ CHILD _ ALIVE _ NOWAIT
NoWaitspecifiedandchildalive .
186 ERROR _ INVALID _ FLAG _ NUMBER
Flagnumberisnotvalid .
187 ERROR _ SEM _ NOT _ FOUND
Semaphoredoesnotexist .
188 ERROR _ INVALID _ STARTING _ CODESEG
Startingcodesegmentisnotvalid ,incorrectEND( label )directive .
189 ERROR _ INVALID _ STACKSEG
Stacksegmentisnotvalid .
190 ERROR _ INVALID _ MODULETYPE
Moduletypeisnotvalid-dynamic - linklibraryfilecannotbeusedasanapplication .Applicationcannotbeusedasadynamic - linklibrary .
191 ERROR _ INVALID _ EXE _ SIGNATURE
EXEsignatureisnotvalid-fileisaDOSmodeprogramoranimproperprogram .
192 ERROR _ EXE _ MARKED _ INVALID
EXEmarkedisnotvalid-linkdetectederrorswhentheapplicationwascreated .
193 ERROR _ BAD _ EXE _ FORMAT
EXEformatnotvalid-fileisaDOSmodeprogramoranimproperprogram .
194 ERROR _ ITERATED _ DATA _ EXCEEDS _ 64k
Iterateddataexceeds64KB-thereismorethan64KBofdatainoneofthesegmentsofthefile .
195 ERROR _ INVALID _ MINALLOCSIZE
Minimumallocationsizeisnotvalid-thesizeisspecifiedtobelessthanthesizeofthesegmentdatainthefile .
196 ERROR _ DYNLINK _ FROM _ INVALID _ RING
Dynamiclinkfromprivilegelevelisnotvalid-privilegelevel2routinecannotlinktodynamic - linklibraries .
197 ERROR _ IOPL _ NOT _ ENABLED
IOPLnotenabled-IOPLsettoNOinCONFIG . SYS .
198 ERROR _ INVALID _ SEGDPL
Segmentdescriptorprivilegelevelisnotvalid-canonlyhaveprivilegelevelsof2and3 .
199 ERROR _ AUTODATASEG _ EXCEEDS _ 64k
Automaticdatasegmentexceeds64KB .

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