Extract tcheck_v11.zip to your MWOS directory (ie: C:\MWOS).
MICROWARE TECH-CHECK will add or update the following
files to your MWOS directory:

\DOS\BIN\csh.dll
\DOS\BIN\tcheck.exe
\DOS\BIN\tcheck.hlp
OS9\68000\CMDS\NOCSL\tcheckp
OS9000\80386\CMDS\NOCSL\tcheckp
OS9000\ARMV4\CMDS\NOCSL\tcheckp
OS9000\ARMV5\CMDS\NOCSL\tcheckp
OS9000\MIPS3000\CMDS\NOCSL\tcheckp
OS9000\MIPS64\CMDS\NOCSL\tcheckp
OS9000\PPC\CMDS\NOCSL\tcheckp
OS9000\SH3\CMDS\NOCSL\tcheckp
OS9000\SH4\CMDS\NOCSL\tcheckp
OS9000\SH4A\CMDS\NOCSL\tcheckp

Run tcheck.exe from your MWOS\DOS\BIN directory.