I've located the SOLO RK05 disc image. I tested it with SIMH, and it appears to work. The command language is a bit opaque; it would be a great help if you could find out if they might still have the documentation, even if they didn't have the code itself. Hopefully, Bob Supnik can get permission to add this to the SIMH software archive. the image temporarily at www.spies.com/aek/solo.dsk --- LIST(CATALOG,ALL,CONSOLE) CONSOLE: SOLO SYSTEM FILES AUTOLOAD SCRATCH PROTECTED 1 PAGES BACKUP SEQCODE PROTECTED 4 PAGES BACKUPMAN ASCII PROTECTED 3 PAGES BACKUPTEXT ASCII PROTECTED 14 PAGES BUILDBATTEXT ASCII UNPROTECTED 1 PAGES BUILDTEXT ASCII UNPROTECTED 4 PAGES CARDS SEQCODE PROTECTED 5 PAGES CARDSMAN ASCII PROTECTED 2 PAGES CARDSTEXT ASCII PROTECTED 12 PAGES CATALOG SCRATCH PROTECTED 15 PAGES CDISKTEXT ASCII UNPROTECTED 10 PAGES COMMANDS ASCII UNPROTECTED 1 PAGES CONSOLE SEQCODE PROTECTED 1 PAGES CONSOLEMAN ASCII PROTECTED 1 PAGES CONSOLETEXT ASCII PROTECTED 8 PAGES COPY SEQCODE PROTECTED 4 PAGES COPYMAN ASCII PROTECTED 2 PAGES COPYTEXT ASCII PROTECTED 12 PAGES CPASCAL SEQCODE PROTECTED 7 PAGES CPASCALMAN ASCII PROTECTED 3 PAGES CPASCALTEXT ASCII PROTECTED 18 PAGES CPASS1 SEQCODE PROTECTED 20 PAGES CPASS1TEXT ASCII PROTECTED 54 PAGES CPASS2 SEQCODE PROTECTED 26 PAGES CPASS2TEXT ASCII PROTECTED 72 PAGES CPASS3 SEQCODE PROTECTED 35 PAGES CPASS3TEXT ASCII PROTECTED 90 PAGES CPASS4 SEQCODE PROTECTED 27 PAGES CPASS4TEXT ASCII PROTECTED 71 PAGES CPASS5 SEQCODE PROTECTED 20 PAGES CPASS5TEXT ASCII PROTECTED 56 PAGES CPASS6 SEQCODE PROTECTED 16 PAGES CPASS6TEXT ASCII PROTECTED 53 PAGES CPASS7 SEQCODE PROTECTED 18 PAGES CPASS7TEXT ASCII PROTECTED 56 PAGES CPTEXT ASCII UNPROTECTED 2 PAGES DISK SEQCODE PROTECTED 2 PAGES DISKMAN ASCII PROTECTED 1 PAGES DISKTEXT ASCII PROTECTED 9 PAGES DO SEQCODE PROTECTED 11 PAGES DOMAN ASCII PROTECTED 3 PAGES DOTEXT ASCII PROTECTED 26 PAGES EDIT SEQCODE PROTECTED 8 PAGES EDITMAN ASCII PROTECTED 5 PAGES EDITTEXT ASCII PROTECTED 20 PAGES FILE SEQCODE PROTECTED 20 PAGES FILEMAN ASCII PROTECTED 3 PAGES FILETEXT ASCII PROTECTED 54 PAGES IO SEQCODE PROTECTED 4 PAGES IOTEXT ASCII PROTECTED 13 PAGES JOB SEQCODE PROTECTED 40 PAGES JOBBUFFER1 SCRATCH PROTECTED 20 PAGES JOBBUFFER2 SCRATCH PROTECTED 20 PAGES JOBINPUT SEQCODE PROTECTED 3 PAGES JOBINPUTTEXT ASCII PROTECTED 6 PAGES JOBOUTPUT SEQCODE PROTECTED 2 PAGES JOBOUTPUTTXT ASCII PROTECTED 6 PAGES JOBPREFIX ASCII PROTECTED 1 PAGES JOBSERVICE SEQCODE PROTECTED 3 PAGES JOBSERVICETX ASCII PROTECTED 8 PAGES JOBSTREAM CONCODE PROTECTED 17 PAGES JOBSTREAMTXT ASCII PROTECTED 50 PAGES KERNELTEXT1 ASCII UNPROTECTED 134 PAGES KERNELTEXT2 ASCII UNPROTECTED 129 PAGES KERNELTEXT3 ASCII UNPROTECTED 147 PAGES KERNELTEXT4 ASCII UNPROTECTED 171 PAGES LIST SEQCODE PROTECTED 7 PAGES LISTMAN ASCII PROTECTED 2 PAGES LISTTEXT ASCII PROTECTED 19 PAGES MAKETEMP SEQCODE PROTECTED 4 PAGES MAKETEMPMAN ASCII PROTECTED 1 PAGES MAKETEMPTEXT ASCII PROTECTED 12 PAGES MOVE SEQCODE PROTECTED 2 PAGES MOVEMAN ASCII PROTECTED 1 PAGES MOVETEXT ASCII PROTECTED 10 PAGES MTOPTEXT ASCII UNPROTECTED 4 PAGES NEXT SCRATCH PROTECTED 255 PAGES PIPELINE CONCODE PROTECTED 4 PAGES PIPELINETEXT ASCII PROTECTED 8 PAGES PREFIX ASCII PROTECTED 6 PAGES PRINTER SEQCODE PROTECTED 3 PAGES PRINTERMAN ASCII PROTECTED 2 PAGES PRINTERTEXT ASCII PROTECTED 11 PAGES READ SEQCODE PROTECTED 4 PAGES READMAN ASCII PROTECTED 2 PAGES READTEXT ASCII PROTECTED 12 PAGES REALTIME CONCODE PROTECTED 11 PAGES REALTIMETEXT ASCII PROTECTED 23 PAGES RKBOOTTEXT ASCII UNPROTECTED 6 PAGES SOLO CONCODE PROTECTED 18 PAGES SOLOBATTEXT ASCII UNPROTECTED 4 PAGES SOLOCOPY ASCII PROTECTED 1 PAGES SOLOFILES ASCII PROTECTED 1 PAGES SOLOTEXT ASCII PROTECTED 52 PAGES SPASCAL SEQCODE PROTECTED 7 PAGES SPASCALMAN ASCII PROTECTED 3 PAGES SPASCALTEXT ASCII PROTECTED 18 PAGES SPASS1 SEQCODE PROTECTED 20 PAGES SPASS1TEXT ASCII PROTECTED 53 PAGES SPASS2 SEQCODE PROTECTED 26 PAGES SPASS2TEXT ASCII PROTECTED 73 PAGES SPASS3 SEQCODE PROTECTED 35 PAGES SPASS3TEXT ASCII PROTECTED 91 PAGES SPASS4 SEQCODE PROTECTED 26 PAGES SPASS4TEXT ASCII PROTECTED 65 PAGES SPASS5 SEQCODE PROTECTED 19 PAGES SPASS5TEXT ASCII PROTECTED 54 PAGES SPASS6 SEQCODE PROTECTED 16 PAGES SPASS6TEXT ASCII PROTECTED 53 PAGES SPASS7 SEQCODE PROTECTED 18 PAGES SPASS7TEXT ASCII PROTECTED 56 PAGES START SEQCODE PROTECTED 3 PAGES STARTMAN ASCII PROTECTED 3 PAGES STARTTEXT ASCII PROTECTED 11 PAGES SUPERMAC ASCII UNPROTECTED 30 PAGES TAPE SEQCODE PROTECTED 3 PAGES TAPEMAN ASCII PROTECTED 2 PAGES TAPETEXT ASCII PROTECTED 14 PAGES TEMP1 SCRATCH PROTECTED 255 PAGES TEMP2 SCRATCH PROTECTED 255 PAGES TOTAPETEXT ASCII UNPROTECTED 4 PAGES WRITE SEQCODE PROTECTED 2 PAGES WRITEMAN ASCII PROTECTED 1 PAGES WRITETEXT ASCII PROTECTED 9 PAGES XMAC ASCII UNPROTECTED 1 PAGES 125 ENTRIES 3391 PAGES