Format of TurboPower TSR data block:
Offset	Size	Description	)
 00h	DWORD	pointer to program tag (counted ASCII string)
 04h	WORD	interface version number (0400h)
 06h	DWORD	pointer to command entry point
 0Ah	DWORD	pointer to previous data block (0000h:0000h if none)
 0Eh	DWORD	pointer to next data block (0000h:0000h if none)
---swappable TSRs only---
 12h	DWORD	pointer to swapping data
 16h	DWORD	pointer to user data
	more???